How to fix ChatGPT lag and freezing

If you use ChatGPT for work you probably noticed that after a while the chat gets slower and slower. Scrolling becomes laggy, typing feels delayed and sometimes the tab just crashes completely. This is not your computer and it is not your internet. It is how ChatGPT works. It loads every single message into your browser at once. The longer the chat gets the worse it becomes. Claude and Gemini don't have this problem because they only load what is visible on screen. I figured out a fix and built it into a Chrome extension.