Hi to all!
I'm bringing this problem up again after so many months scince I've just encountered the issue. The mouse is laggy when leaving the canvas area beyond the rulers for a second, then goes back to being smooth. I have a setup like this:
Nvidia RTX 3060Ti
Intel(R) Core(TM) i5-9600K CPU
Windows 10 Home
Nvidia GeForce driver 471.96
3440x1440 GSync monitor
Affinity Designer 1.10.1.1142
I found out, that the issue is caused by the rulers. When these are on, the mouse lags when passing outside the rulers area. When rulers are off, the mouse works smoothly all the time. Let me point out that this is all with a GSync on and all Nvidia settings at their defaults.
Unfortunately, Turning either rulers or GSync globally off is not convenient. Getting rid of the rulers for the sake of performance is like choosing the wrong that's more right. Could it be possible for me to request the developer team to look into that and maybe even possibly prevent the rulers from lagging the mouse in the future? I would be more than thankful scince I don't wish to switch to any other program. 🙂