Hello, i’m back again with more question. The problem lies on the speed of how fast i can increase or decrease the size of my brush (shift+stylus drag). It still works, but i want to make it slightly faster, how can i do that. Thank you in advance!
That depends on the performance of the hardware you’re using: The faster your PC and the higher the reporting rate of your tablet, the faster it can respond. By the way, for physical reasons, a tablet connected via a cable is slightly faster than a wireless one.
But with your Wacom, you should already be at the peak of abilities when it comes to reporting rates, although I don’t know its age.
As far as I know, the process itself cannot be influenced. If at all, then perhaps through code optimization, which is highly unlikely to happen I believe because even on my 12 years old PC it follows as fast as I move. For my understanding, it depends solely on the complexity of the brush, so brush tip, mask, pattern, settings & engine used, and the ability of the CPU, which shouldn’t really be an issue for a decent modern CPU from 2020 onward.
Off-Topic part:
A bottleneck that can be: Only those stripped-down CPUs that are kept as cheap as possible, and therefore, of course, have as little power as possible, in those supposedly affordable PCs (hey, it’s a bargain … 
) that people are tricked into buying - and then wonder here in the forum why everything is glitchy, laggy, and slow, whereas the seller said it is a super gaming PC - might likely stutter.
Somehow, many people just can’t wrap their heads around the analogy between the cheapest PC hardware and the cheapest compact car - you won’t win any races with either of them! But these users are those who most often claim to have lags of some kind …
Michelist
I switched to linux recently, i don’t think its my hardware causing this because compared to when im using it in window its slightly faster. Don’t know if its linux problem or what.
Oh never mind, i up the brush size limit and it does increase the speed. Think its solved now. Thanks for the support!