3-4k is a bit low, my old xtr I'd get a good 5-6 from a rear and I didn hold back on the throttle but the. again then xtrs a bit lighter.

the tourances aren't be softest tyre but not the hardest, I found they give good great for the mileage and feel, any lessor mullahs and feel and I'd probably want to change to some better.

The hard on/off acceleration doesn't help, but it's normally a combination of mileage, speed, cornering speeds/forces, and the amount of weight you+bike+kit/luggage are.

__________________
Plough on