Hi. i also have an old Athlon processor, but I have 6 GB ram. you may do better with Linux Lite 4, and maybe even 3 (which is still supported until next April - that's what i'm running, due to my video card having expired, putting me back on on-board graphics). LL 3.8 runs flawlessly for me. LL4 is too much for my graphics, I get display failures. If you are not getting display failures, you can probably use LL4.
Also, a lighter browser would help. I use Vivaldi, and disable all acceleration and other settings that might slow things down. There are lighter ones out there as well. Firefox is pretty demanding.
I would try a lighter browser, and adjust the settings, to see if that helps. If not, an earlier version of Lite may be desirable. Here is an article about light browsers for Linux. If you need help installing it, we'll be glad to help. (If you go with Vivaldi, download the .deb file. It should then install easily).
https://www.triveditech.com/best-lightwe...t-browser/
Also, a lighter browser would help. I use Vivaldi, and disable all acceleration and other settings that might slow things down. There are lighter ones out there as well. Firefox is pretty demanding.
I would try a lighter browser, and adjust the settings, to see if that helps. If not, an earlier version of Lite may be desirable. Here is an article about light browsers for Linux. If you need help installing it, we'll be glad to help. (If you go with Vivaldi, download the .deb file. It should then install easily).
https://www.triveditech.com/best-lightwe...t-browser/