Hello! Just to clarify, are you changing your tablet driver from your tablet settings, or from Pixelorama's preferences? For tablets to work properly, the driver from Pixelorama's preferences need to match the driver you are actually using.
Apart from that, I'm afraid there is not much we can help you with. Pixelorama's entire tablet system is taken directly from Godot, so it is very possible that issues you may encounter with specific hardware are issues with Godot itself and would need to be reported there.