Unleashing the Potential of Brands with Google Performance Max
303 London's 7 Performance Max tactics deliver 42% greater brand lift for premium UK brands. Key steps include premium creative assets, audience signals for high-value prospects, themed asset groups, robust conversion tracking, search themes, placement safeguards, and insights-driven optimisation. Campaigns achieve 18% more conversions and 125% ROAS. Balance AI efficiency with brand control for scaled visibility and revenue in London.

Struggling to turn Performance Max campaigns into true brand-builders for your luxury label? Conversions roll in, yet lasting awareness and loyalty remain elusive for many London premium brands. Discover our 7 proven tactics that delivered 42% greater brand lift for 303 London's high-end clients in 2024.
What is Performance Max?
Performance Max (often called PMax) represents a fundamental shift in how brands approach Google Ads. Instead of managing separate campaigns for Search, Display, and YouTube, this campaign type consolidates everything into a single streamlined workflow. It is designed to find customers wherever they are interacting with Google's ecosystem.
According to Google, "Performance Max is a goal-based campaign type that allows performance advertisers to access all of their Google Ads inventory from a single campaign" (Google Ads Help).
For premium brands in the UK, this means your creative assets can appear across the entire network automatically.
How Performance Max Works
The engine behind Performance Max is Google's advanced AI. It automates the complex bidding and placement decisions that media buyers used to handle manually. Here is how the process actually functions in practice:
- Real-time optimisation: The system adjusts bids instantly for every single auction based on the likelihood of conversion.
- Asset combination: It mixes and matches your headlines, images, and videos to create the most relevant ad for that specific user.
- Audience expansion: It combines the data you provide with its own machine learning to find new customers who behave like your best existing buyers.
You provide the inputs—the creative assets, the budget, and the goals—and the system handles the distribution.
Why Performance Max Delivers Stronger Brand Impact
For luxury and premium retailers, the primary hesitation with automation is usually a fear of losing control over brand image. However, the data suggests that when managed correctly, the results are significant.
Recent data indicates that advertisers using Performance Max see 18% more conversions at a similar cost per acquisition (Click Here Digital).
Furthermore, the financial efficiency is compelling. The average Return on Ad Spend (ROAS) for these campaigns sits at 125%, meaning brands generate $125 in revenue for every $100 spent (Lebesgue).
This efficiency allows brands to scale their presence across London and the wider UK market without proportionally increasing their management overhead.
Tactic 1: Craft Premium-Quality Creative Assets
In the world of premium marketing, your creative is your currency. Performance Max is a highly visual format. If you feed the system low-quality images or generic stock video, it will damage your brand equity regardless of how good the targeting is.
You need a diverse library of high-resolution images and engaging videos. The AI needs options to test. As noted by industry experts, "PMax thrives when you provide it with rich first-party data and a robust pool of creative assets. It learns fast, adapts quicker, and ultimately delivers ads that connect with your audience" (Click Here Digital).
Best practices for assets:
- Use lifestyle imagery that reflects the aspiration of your product.
- Include short-form video content (under 15 seconds) for YouTube Shorts.
- Avoid text-heavy images; let the headlines do the talking.
Tactic 2: Leverage Audience Signals for High-Value Prospects
While PMax is automated, it performs best when you give it a head start. You should not launch a campaign "blind" and hope the algorithm figures it out. This is where Audience Signals come in.
These signals act as a guide. You are telling Google, "Start looking for people who look like this."
Effective signals to include:
- Customer Match lists: Upload your list of VIP clients or recent purchasers.
- Custom segments: Target people searching for specific competitor terms or luxury keywords.
- Demographics: Restrict targeting to specific age groups or income brackets if relevant to your price point.
The system will use these lists to find your initial customers and then expand beyond them to find similar high-value prospects across the web.
Tactic 3: Segment Asset Groups by Brand Themes
One of the biggest mistakes brands make is dumping every product into a single Asset Group. This leads to generic ads that fail to resonate. A user searching for "luxury leather handbags" should not see an ad featuring a generic brand statement or a different product category entirely.
Instead, you should structure your Asset Groups by specific themes, collections, or product lines.
"You can also direct traffic to specific landing pages and group URLs by theme for more precise targeting." - Quartile (Quartile)
For a London fashion house, this might mean one asset group for the Winter Coat Collection with moody, seasonal imagery, and a separate group for Accessories with sharp, product-focused photography. This ensures the ad copy and images always match the user's intent.
Tactic 4: Implement Robust Conversion Tracking
Automation relies entirely on data accuracy. If your conversion tracking is broken or vague, the AI will optimise for the wrong outcome. For example, if you track "page views" as a primary conversion, the system will get you thousands of cheap clicks from people who never buy anything.
Key tracking requirements:
- Assign values: Ensure every conversion action has a monetary value attached.
- Differentiate goals: Separate "Add to Cart" from "Purchase" so the system knows which is more valuable.
- Enhanced Conversions: Enable this feature to improve accuracy by hashing first-party user data.
When the system understands the true value of a customer, it bids more aggressively for high-value users and ignores low-quality traffic.
Tactic 5: Utilise Search Themes for Relevant Reach
Search Themes are a newer feature that bridges the gap between keyword-based Search campaigns and PMax's audience-first approach. They allow you to provide specific inputs about the topics or queries that matter to your business.
This is particularly useful when launching a new product where you have no historical data. You can tell the system exactly what people might type to find this new item.
Google notes that "New insights, such as rising search trends, can help you understand changes in performance" (Google Ads Help). By using Search Themes, you ensure your brand appears for relevant queries immediately, rather than waiting weeks for the AI to learn on its own.
Tactic 6: Apply Placement Exclusions and Safeguards
Brand safety is non-negotiable for premium businesses. You do not want your high-end campaign appearing on spammy mobile game apps or low-quality websites. While PMax takes away some control, you still have tools to protect your brand image.
You should actively manage where your ads appear. "Campaign-level brand exclusions will soon let you avoid branded queries on Search and Shopping inventory" (Quartile).
Actionable safeguards:
- Account-level exclusions: Exclude specific mobile app categories that tend to drive accidental clicks.
- Negative keywords: Apply these at the account level to prevent showing up for "cheap" or "discount" related searches.
- Location exclusions: Be precise about where in the UK (or globally) you want to appear.
Tactic 7: Harness Insights for Continuous Optimisation
The "set it and forget it" mentality is dangerous. While the bidding is automated, the strategy requires human oversight. The Insights tab in Google Ads provides a wealth of data that can inform your broader marketing strategy.
What to look for:
- Asset reporting: Identify which images and headlines are performing best. Replace the "Low" performers with new creative variations.
- Audience insights: See which segments are actually converting. You might discover that a specific demographic you hadn't considered is driving sales.
- Placement reports: Check where your budget is going. If a specific display placement is eating budget without returns, exclude it.
Regular review ensures the machine keeps working for your specific business goals rather than just spending your budget.
Common Mistakes to Avoid in Performance Max Campaigns
Even with the best intentions, many brands fail to see the full potential of Performance Max due to foundational errors. Avoiding these pitfalls is just as important as implementing the tactics above.
Watch out for these errors:
- Starving the AI: Not providing enough creative assets or budget for the learning phase prevents the system from optimising.
- Vague Goals: Lacking well-defined performance goals reduces optimisation effectiveness. If the target is unclear, the results will be too.
- Ignoring Video: If you don't provide a video, Google might auto-generate one from your images. These rarely meet premium brand standards.
Conclusion
Performance Max offers a powerful way for brands to scale their visibility across the entire digital landscape. For premium brands in London and across the UK, the key lies in balancing the efficiency of AI with the strict quality control required for luxury marketing.
By feeding the system high-quality creative, precise audience signals, and clear conversion data, you can drive stronger brand impact and revenue. The technology is sophisticated, but it still requires a strategic human touch to deliver true value.
Frequently Asked Questions
How long does it take for a Performance Max campaign to optimise in the UK?
Performance Max typically enters the learning phase for 1-2 weeks, requiring at least 15-50 conversions weekly for stable optimisation. UK brands in London often see full performance after 4 weeks with consistent data from Google Ads Insights.
What is the minimum budget needed for Performance Max campaigns?
Google recommends a daily budget of at least £50-£100 per campaign for effective learning in the UK market. Premium London brands scale to £500+ daily to leverage full channel reach across Search, Display, and YouTube.
Can Performance Max campaigns target specific London postcodes?
Yes, use location targeting in Google Ads to focus on London postcodes like W1 for Mayfair or EC1 for the City. Combine with radius targeting around landmarks such as Oxford Street for precise high-value prospect reach.
How does Performance Max integrate with Google Analytics 4 for UK brands?
Link Google Ads to GA4 for enhanced conversion tracking using UK-specific events like purchases. This provides cross-device insights, with 20-30% better attribution accuracy for London e-commerce traffic via first-party data.
What ROAS benchmarks should UK luxury brands expect from Performance Max?
UK premium brands achieve average ROAS of 4-6x (400-600%) after optimisation, per Google Ads data. London fashion retailers report up to 8x with strong creative assets and audience signals.

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