If you are looking for a WordPress Speed Optimization strategy that actually works, then you are in the right place. One afternoon, I decided to check my website’s speed. As soon as the results came in, I was stunned. The site was so slow it received a ‘Grade D’ with a performance score of only 43%.
Table of Contents
Why Core Web Vitals Fix is the Priority for WordPress Speed Optimization
If you want to build a high-performance website, then you will have to focus on Core Web Vitals Fix. My goal was not only to achieve a good score, but also to reduce TTFB WordPress so that the server gives a quick response.
The biggest issue was the LCP. While a site should ideally load in under 3 seconds, mine took 17.6 seconds. This meant visitors saw nothing but a blank screen for a long time, and most users won’t wait that long.
Friends, according to Google’s scenario, slow speed means ‘death’. Whether you write very good content or build many backlinks, if your website is not loading, you cannot rank. Sometimes the problem is not only in the website settings but also in the server. If you are thinking, Why Is My Website Loading Slow, then often the reason is weak or poor hosting. I decided that I would fix every setting that was acting as a stumbling block for my site. I made a ‘War Room’ with PageSpeed Insights, GTmetrix, and the LiteSpeed dashboard.
The Battle with 663 Heavy Images
How to Optimize 600+ Images Without Losing Quality
In WordPress speed optimization, images are the biggest problem. By using WebP image conversion, I significantly reduced image sizes without losing quality. When I analyzed the report in detail, I understood that my website’s biggest problem was my images. There are 663 images on my website, and all of them were uploaded in JPEG/PNG format. Each image size was between 200KB and 1MB. Now think, when a website has such a heavy image load, then loading faster is almost impossible.
I used LiteSpeed Cache Image Optimization. Initially, I enabled WebP image conversion. WebP format is the ‘next generation technology’ of today’s era, which maintains 100% image quality but reduces the size by up to 80%. I clicked on ‘Send Optimization’. Here comes a question: when should we ‘pull’? I learned that as soon as the first 100 images are optimized, we should press the ‘Pull Images’ button. I did the same and ran this cycle again and again. Compressing 663 images was not a small task and required patience. Gradually, my website started to become lighter, and image loading time began to reduce.
Pro-Tip: Don’t wait to ever pull all images at once. As soon as the button becomes active, click, so that refresh cache frequently.
Surgical strike of Code – CSS and JS Optimization
How to Fix Render-blocking Resources in WordPress
To complete WordPress speed optimization, I had to handle code-related issues. By using LiteSpeed Cache Settings, I made the CSS and JS simple and smooth, so the website started to load perfectly.
Images became lighter, but now the concern was code. In every WordPress website, there is too much CSS and JavaScript, which come from plugins. My theme is already fast, but the plugins created a trap of code, which is called ‘render-blocking resources‘. Managing all these technical things can be a bit difficult. This is where Managed WordPress Hosting works, which handles most of the server-related tasks for you. I started the process by going to LiteSpeed Page Optimization.
CSS: Clean and Well-Organized Code
I enabled CSS Minify and CSS Combine. Minification removed unnecessary whitespace and comments from the code, and combining the files merged 20 separate files into a single one. Because of this, the browser didn’t need to make requests to the server again and again. But the most important was UCSS (Unique CSS). It loaded only the code for each page that was necessary for that specific page.
JS: The Magic of Defer
Friends, JavaScript is the thing that makes websites interactive (e.g., opening menus and running sliders), but it is also the biggest enemy of speed. I set “Load JS Deferred” to deferred. This magic happened: my website’s main content loaded quickly (text and images), and JavaScript continued to load comfortably in the background. Because of this, my TBT (Total Blocking Time) became 0 ms! It is the most effective way to increase mobile scores.
Chapter 4: Media Settings and Lazy Loading – The Victory of User Experience
I saw one more thing in the report: Google was complaining that image sizes were not fixed. I turned on “Add Missing Sizes.” Because of this, Google’s annoying error “Explicit width and height missing” was removed forever.
I activated “Lazy Load Images” along with it. This means that if you are reading my article, the images below will only load when you scroll down to reach them. Due to this, the initial loading speed increased by up to 10x.
I also turned on LQIP (Low-Quality Image Placeholder) so that the user feels something is loading and waits.
Chapter 5: Guest Mode and Guest Optimization – The Secret Weapon
Achieving a 90+ Mobile PageSpeed Score with Guest Mode
In my WordPress Speed Optimization strategy, it was a secret weapon that finally brought my mobile score into the green zone. Now comes the thing that 99% of people don’t use. I turned on Guest Mode and Guest Optimization. It is a feature of LiteSpeed that prepares a super-fast cached version for new visitors. When any visitor comes to choicereader.com for the first time, they see the top optimized version created by the plugin. Because of this, my website’s response time (TTFB) was significantly reduced.
I pressed the “Purge All” button and checked my website in incognito mode. The website was not only opening, but it was also opening quickly with lightning-fast speed. But the main test was still due. Then I opened google pagespeed insights and gtmetrix.
Chapter 6: Celebrating the Results – Grade A and a 99/100 Score
When I tested again, I was surprised to see the results. 97% performance on mobile and 99% on desktop! Grade A and 98% Structure on GTmetrix! The LCP, which was 17.6 seconds previously, has now been reduced to just 1.8 seconds.
| Performance Metric | Previous Result (D Grade) | New Result (A Grade) |
| Overall GTmetrix Grade | D (Sad) | A (Awesome) |
| Mobile PageSpeed Score | 43% | 97% |
| Desktop PageSpeed Score | 60% | 99% |
| LCP (Largest Contentful Paint) | 17.6s | 1.8s |
| TBT (Total Blocking Time) | 1450ms | 0ms |
“Speed is not just numbers; it is trust. If a website opens fast, then users trust your content more.”
Conclusion: My Learnings and Advice for You
If you want a permanent Core Web Vitals Fix, then following a proper WordPress Speed Optimization guide is the best method. Guys, there are too many WordPress website speed optimization guides; this case study is the distillation of my personal experience. I learned that without image optimization, you may not be fast, and without deferring, you can’t rank on mobile. In today’s fast-changing Digital Marketing 2026 landscape, website speed is very important. If the speed is not good, then AI-based search engines can ignore your brand. I have made my website choicereader.com a high-speed machine with the right settings of LiteSpeed Cache and a fast theme.
Now my full focus is only on writing high-quality, valuable content because the technical groundwork is now fully strong. Now the speed-related issues have been solved, so I can focus on how to write high quality blogs, so that I can engage my readers. If you also want to speed up your website, then don’t be afraid—carefully follow the LiteSpeed settings, convert your images to WebP, and enjoy an “A-grade” website after using “Purge All.”