After some testing and gameplay of Tank Crew, I would suggest to change the main gun controls to some normal keys, not mouse controled.
So you can drive the tank, rotate the turret to a specific position and than aim at the targets.
Drive: Joystick or WASD
Turret: arrow keys
elevation "page up, down"
WW2 Tanks doesnt need to point at the target while driving as a modern tank can do it.
The Mouse control never feel, as im having the control over the gun.
Can you guys remember this game, the control settings were comfortable. https://en.wikipedia.org/wiki/Panzer_Commander