Issue with programs stalling

Thank you for the advice John. As recommended, I did delete "Cleaner One Pro".

Since removing "Cleaner One Pro", I've found that some of the browsers I have installed hang after just 5 minutes and after clearing some 250 MB to 1.5 Gb of browser cache images the program I am watching, such as a news program or Youtube, the browser resumes.

The issue of browsers hanging up while watching a news program for example. I have Safari, Chrome, and Brave, Opera installed to check the performance of my website on different browsers. All except Safari have massive volumes of support files. Chrome and Brave both have around 1.9 Gb of files other than the actual program itself, built up after many years of use.

Is there a way to remove the excess browser files, without the nuclear option I thought about of completely deleting the browser then reinstalling the browsers?

By the way I keep Safari for specific uses and don't use Safari for YouTube or watching news programs.

After using this Mac a lot since 2015 it's getting cluttered with what I class as rubbish in the system folder. I did clean out the system cache of the OS which helped, but other rubbish need to be cleared out.

Any ideas welcome. Thank you

Thank you, John and BDAqua for the input.

Actually, I've used Non-Mac computers since 1980 while in Japan, and bought my first Mac LC in late 1990 also in Japan. Since then, I've had numerous Macs. But age and memory is not only affecting my computer but also myself. This was the reason I reached out for assistance.

I still have an old MacBook that I bought in Japan that actually crashed due to excessive weather heat exposure and the Genius bar said it was scrap. I reformatted the HD using the high-security multiformatting and finally reinstalled the OS and now use it for a version of PhotoShop that won't run on the current 2015 Mac.

But I am not keen to go through all that complete rebuilding with the current 2015 MacBook Pro as I the issues is with the browsers.

I will have another root about in the hidden Library and see what I can delete in Chrome and Brave folders; the issue of the browsers hanging up are specific to these two browsers, which have accumulated a lot of files in the Browser and Cashe system folders. I've deleted all but 2 extensions in both browsers and that has resulted in improvements.

I did delete some files in the location on the MacOS Folder structure: -> User -> Library (the hidden one) -> Application Support -> Google -> Chrome -> Default. But there seems to be a lot of excessive files in folders.

Two of the many examples I would like to address are:

The default folder has 960.7 MB and 53 subfolders, and 80 independent files without folders.

Default -> Service Worker -> Script Cache has 21.4 MB and 630 independent files without folders.

Both Chrome and Brave have around 1.9 GB in the Subfolders independent of the browser programs themselves, in comparison, Safari only has 20 MB in similar folders - although I only use Safari except for specific purposes.

If you know of any specific programs that are ideal to clear on built-up unnecessary files specific to browsers, that would be quite helpful. Thank you for your assistance.

Regards.