I’ use a Logitech M570 wireless trackball for ergonomic reasons, and it works perfectly on every other application (Win 11) - except in Comfyui the scroll wheel Zoom function doesn’t work right. One “click” of the scroll wheel causes the canvas to zoom to 1000X or so, making it very difficult to navigate. If the “Fit View” button is visible that will bring back a usable view and both the on-screen and hotkeys do work to zoom in/out as they should. But it would be a lot more convenient to be able to use the scroll wheel like most other software does. I’ve reduced the scroll increment from 3 to 1 but it didn’t make any difference. I had the same problem when I played with Comfyui on VastAI.
Google search turned up other mentions of this problem but I haven’t found a definitive answer and would certainly appreciate any suggestions as it drive me nuts 
Thanks!