I switched from Zorin Core to Lite but even after this I have performances issue with my laptop. It's faster than Zorin Core and windows 10 but sometimes I work for 10 mins and it crashes I have no idea why, all is froze and after fews mins it doesn't unfreeze so I have to restart using power button which is annoying.
I wonder how I can improve that. It looks like if an app is taking too much ressources it doesn't pause or stop process so even OS itself has problem.
I noticed that brave browser was taking a lot of RAM it might be the reason?
As you can see on your screenshot, you have a ton of crash reporters running, so try opening their corresponding app and disabling problems reporting and crashes handling options to see if performance improves.
I think that too, your ram 4 gig, and a lot of opened tabs in brave or chrome browsers consume your ram.
to avoid that , u need to use extension in your browser to sleep unused tabs. or you can use (nohang) tool , it's good tool that notify u to close unused tabs or unused apps before craching.