Machine: Windows 11 Core i7 32gb ram. NVidia GeForce GT 1030 graphics adapter.
VCVRack is a pretty intensive user of OpenGL rendering. When Sumu's user interface is open, Rack's user interface becomes unresponsive, because the two windows are thrashing the graphics engine.
Rack allows you to control the refresh rate of the Rack Window, but Sumu does not. Why is Sumu taking up so much of the graphics bandwidth? Could you add an option to lower the UI refresh rate for your plugins?