When a website feels slow, images are the usual culprit. They typically make up the majority of a page's total weight, far more than the code. The encouraging part is that image weight is also the easiest thing to fix, and you do not need a developer to do it.
Step one: stop serving huge images
The most common mistake is uploading a photo straight from a camera or phone. A 4000 pixel wide image displayed in a 600 pixel wide slot forces every visitor to download roughly forty times more data than they can actually see. Resize images to the size they will actually be displayed at, perhaps double that for sharp screens, and nothing more.
Step two: compress what is left
Once the dimensions are sensible, compression removes detail the eye cannot detect. Dropping a JPG to around 80 percent quality often halves the file with no visible difference. For a page with a dozen images, that alone can cut load time noticeably.
Step three: switch to WebP
WebP produces files roughly a quarter to a third smaller than JPG at the same visual quality, and it supports transparency like PNG. Every modern browser handles it, which is why nearly every fast website now serves WebP.
- Resize to the display size first, because it has the biggest effect.
- Compress to around 75 to 85 percent quality for the web.
- Convert to WebP for the final saving.
- Check the result on a phone, where slow connections hurt most.
Page speed affects both how many visitors stay and how search engines rank you, so this is one of the few tasks that improves user experience and SEO at the same time.