I have a weird issue with my 48v tsdz2 after attempting to get the SW102 to work with emmebrusa OSF...
If I understand well you have flashed the controller with OSF for stock display (vlcd5)
That version will never work with an SW102 flashed bootloader.
For that you need the 860C controller version.
An torque range of 190 is more as reasonable, it means you have a very sensitive torquesensor.
Are you sure you have enabled calibration and estimated?