dynabook N40

I have Ununtu Japanese Remix installed on my dynabook N40 and external monitor, and using Sikulix, I am enjoying playing reasonably well, but I am actually feeling a limitation. . It was the same when I had CloudReady installed, but Frequent freezes. Sometimes it does not happen for a couple of hours, sometimes it happens every few minutes.
　It didn’t happen when I was using Windows 10, so I think there is a possibility to solve the problem, but I’m not sure if it’s a hardware problem? It is very stressful to investigate the hardware problem on a machine where it is occurring (;-).
　As expected, I think it would be better to buy a second computer that should be the base and to investigate the dynabook N40 problem, but…

• Necessity is always the best teacher.

I am still on the fence because I feel that if I buy a new computer, I will never come back to the dynabook N40 (lol).