Navigator trackball cursor movement not smooth
Hello all! I recently got a Navigator trackball for my Voyager and am really liking it so far; however I just noticed that the cursor doesn't move as smoothly as it does with my Kensington Orbit trackball or my Logitech mouse. It looks like "low polling rate" on a cheap mouse: the cursor does move accurately and instantly, but it stutters while moving, as if the "frame rate" wasn't constistent.
I've cleaned the sensor, housing and the ball, reflashed the firmware, tried alternate USB cables and another TRRS cable, different USB ports and computers, switching between macOS and Windows. The issue persists.
I can't even say for sure if the cursor has always moved this way but it seems to me like it was smoother when I had just gotten the device. Could a firmware update have messed with the trackball's update speed?