Yes, every time I lower the polling rate, the dead zone of the right stick gets smaller. When I set the polling rate to 125hz and turn on sab2.0, the right stick has no dead zone, but the left stick drifts. Setting the polling rate to 250hz feels like there's a little dead zone, and 1000hz has the largest dead zone for the right stick.
Interestingly, when enabling sab2.0 at 1000hz, the left joystick does not exhibit drift issues, while the right joystick has a dead zone. And when you modify "minimum speed" to 41 within the app, the dead zone on the right joystick disappears, but the feel is very strange. When enabling sab2.0 at 125hz, the left joystick has a very noticeable drift (quickly tap the "D" direction key twice, the joystick will keep moving to the right), while the right joystick feels okay.
Currently, my settings are to enable 1000Hz while adjusting the "Minimum Speed" to 42. This way, although the right stick movement is strange, at least sab2.0 can still coexist with 1000Hz.