When the cursor is moving, whatever is running on the desktop temporally stops until the cursor comes to a stop. I am guessing because CPU or GPU spent all its power drawing the cursor and nothing else.
While using my Quartz64A I am getting cursor flickering while moving the cursor. While I move the cursor everything else just stops and only continues after the cursor stops moving.
glxinfo is reporting mesa is able to find Mali G52 but I am having a feeling the GPU is not helping the desktop rendering here.