Most PPC problems aren't PPC problems.
The account structure is fine. The bids are reasonable. The keywords are well-chosen. But the numbers don't stack up, and so the instinct is to go looking for something to fix inside Google Ads.
Usually the real problem is 30 seconds after the click.
What your conversion rate is actually costing you
If your landing page converts at 2% and a competitor's converts at 3%, they're not just winning on one metric. They're winning the auction too.
Here's why. Google's Quality Score — the score that determines your ad position and what you actually pay per click — is partly driven by expected clickthrough rate and landing page experience. A slow, poorly-built, or irrelevant landing page actively degrades your Quality Score. A low Quality Score means you pay more for every click, or get outranked, or both.
So a bad landing page doesn't just waste the traffic you send to it. It increases the cost of every click before that traffic even arrives.
Fix the page and you improve in both directions simultaneously: cheaper clicks, and more of them converting when they land.
The snowball no one talks about
This is where it gets interesting.
Take a business spending £5,000 a month on Google Ads with a 2% conversion rate and a £40 cost-per-click. That's roughly 125 visitors and 2–3 conversions per month.
Now improve the landing page. Conversion rate goes to 3%. That's a 50% improvement in output with zero increase in spend.
But it also means you can now afford to bid more. If every conversion is worth the same amount to your business, a better conversion rate means each click is worth more to you than it was before. You can increase your target CPA or ROAS, bid more aggressively, and win more of the auction.
More volume now flows in. Conversion rate still holds at 3%. Each additional visitor is now more likely to convert than before, and you're getting more of them.
That's the snowball. A 10% improvement in conversion rate doesn't just give you 10% more conversions. It gives you the ability to buy more traffic at a price that still works, which compounds the gain further. Better conversion rate → can afford higher bids → higher position → more traffic → more conversions, at that same improved rate.
The lift is non-linear. That's what makes landing page optimisation the highest-leverage thing you can do to a PPC account.
Amazon did the maths
The data point that should end most arguments about page speed: Amazon found that every 100ms reduction in page load time corresponded to a 1% increase in revenue. One tenth of a second. One percent.
If your landing page loads in 4 seconds instead of 2, you're not just annoying users. You're leaking money at a measurable rate. Shave two seconds off your page load time and — all else being equal — you're looking at a 20% revenue uplift from the same traffic.
Combined with the Quality Score impact of a faster page, page speed is probably the single most underinvested lever in most eCommerce PPC accounts. Most businesses would rather argue about bid strategies.
What "good" actually looks like
A high-converting landing page in a PPC context isn't about design. It's about relevance and friction.
Relevance means the page matches the ad. If someone clicked "men's formal shirts free delivery" and lands on a homepage, you've already lost them. The page should answer the exact promise the ad made, immediately, without making them work for it.
Friction is everything that slows down or complicates the path to conversion: slow load times, unclear CTAs, forms that ask for too much, pages that aren't properly mobile-optimised, popups that fire immediately. Every extra second of load time, every unnecessary click, is a percentage point off your conversion rate.
The good news: most of these are fixable without a full site rebuild. A well-structured, fast-loading landing page can be built cleanly and cheaply with the right tools. The bar for "better than your competitors" is lower than most people think.
The honest take
I'll say the quiet part out loud: if your website isn't right, you shouldn't be spending heavily on PPC yet.
A bad landing page is a leak in the bucket. You can keep filling the bucket — more spend, better keywords, tighter bids — but if the leak is big enough, the bucket never fills. Fixing the leak is the higher-priority work.
The businesses that get the best results from PPC are the ones who treat it as a system: ad → click → page → conversion. They optimise all of it, not just the bit inside the Google Ads interface.
If you're not sure where your system is leaking, an audit is a good place to start.