It used to be that outside of video editing, TVPaint was the only program i'd use for everything, these days the program doesn't hold up as a main software for me sadly. To be honest since i lost access to 32-bit at the end of last year i've only used TVPaint a handful of times. This form of lag is more manageable, because it doesn't directly affect the actual usability of the program and can be worked around. The other form of lag happens to me whenever the Mac goes to sleep and wakes up, or TVPaint moves from one screen to another at any time, the program will begin to lag severely until it is closed and re-opened again. There is no longer any work-around for this problem until it's actually fixed or TVPaint 12 gets released. the real shame is that for Mac TVPaint users, a 4k monitor is a huge waste of money, considering it's been 4 years and still seemingly no plan to fix that major underlying issue. For instance if i set my 4k tablet to 2k, the program runs pretty much without issue (though still brush performance is less optimised than it was on the old 32-bit version, even at lower resolution, but it's work-able). I feel that this kind of lag could be not as prevalent due to most people not running a monitor that is anything over 2k. The first instance brush engine problems was with jagged lines back around 2018-2019, and possibly whatever work-around was introduced to solve the jagged lines problem brought in the lag problems? It does not seem to be a Wacom driver issue due to tests with the tablet both plugged in and un-plugged, and drawing with the mouse or pen makes no difference. The lag has always been exclusive to the 64-bit version of the program. To me, it seems the lag is related to the physical size of the brush on the screen, and no relation to the in-program canvas size, a 1920x1080 project gets the exact same lag as a 4k+ project. at 4k any brush in the program will lag severely, with the issue severely worsening if the canvas is zoomed in.

The first kind of lag occurs if i use tvpaint on a monitor resolution of anything over 2k.

I've been having 2 seperate but possibly related lag issues: TVPaint 11.5.3 64 bit, M1 Mac Mini 16gb Ram.

I've tried both USB-C and HDMI/USB and there is no change in behaviour between them. Although you know of my problems with the lag, i'll drop it in here too just for reference for anyone else running into similar problems.

Canvas draw 6 for macos