Slow / laggy eraser
GIMP version: 2.10
Operating System: MacOS Big Sur 11.0.1
Package: gimp.org
Description of the bug
The eraser and paint is incredibly slow to react. So much so I draw a line and only half of the line gets drawn. I have read some forums to try and troubleshoot, but I'm already working at 8bit interger (which I read helps with speed). My macbook is 2018, so not old and decent specs, tho it is getting very hot trying to use GIMP.
Reproduction
Is the bug reproducible?
Reproduction steps:
- Eraser tool
- Drag to erase
- It is jumpy / doesn't follow the line / only erases half the line
…
Expected result: cursor that follows, eraser that doesn't cut out.
Actual result: cursor that lags, eraser that cuts out.
Additional information
The bug is reproducible with my tablet and mousepad. The size of the actual picture isn't affecting it, I have tried making it very small and the problem persists. The Mac is now very cool, and is not running any other programs so it's not that the computer is overloaded. I am just a regular millennial, not a programmer, so I'll have limits on how much I understand / can engage with technical jargon.
Here is a video of me showing the bug: https://youtu.be/31LVr-0acts
If you have a backtrace for a crash or a warning, paste it here.