I suspect that you'll find an improvement if you are prepared to remove the Content Paradise room. See PoserPros under General Discussions and/or FreeStuff for instructions. Removing Content Parasite returned near-linearity to mouse movements in P5. Still not as good as P4 but a lot closer. So it may well do same to graphics tablet. Speeds up load time too. Conjecture is that P5 Paratmeter Dial is a separate window to the OS, so much intertask communication is being wasted keeping them in sync. And if IE is linked in to service CP then it gets to stick it's nose in between each intertask communication to further delaying things. Note this solution only affects the dials on the Windows version of P5, OSX can still treat the Parameter Dial panel as part of the main application so it doesn't seem to suffer from the mouse/dial slowness problem. It also reportedly doesn't benefit all versiosn of P5, but certainly does seem to help the early versions that have been patched up to SR3.