PC2 Help for my T-GT wheel - PS4

[hEEk]

Hello all,
i have a strange problem with my new wheel on this game, with every set-up i tried every car slides left and right when i push the throttle pedal, even if i am starting to accelerate and i am not at full speed. Moreover the brake pedal doesn't work as expected: if i i brake the braking is not responsive and is very slow (even setting the brake sensitivity to 100).
Other games like dirt rally, assetto corsa and gran turismo don't give me this issue, i'm encountering it only in PC2.
Please can you suggest me what to do to drive decently on this game? (i am @ version 7.10)
Thanks in advance
P.s.: The game recognizes my wheel as T300 RS (the switch on the base is set to "other") and i cannot switch to "custom" settings in the config and in FFB tab

 

[hEEk]

Thank you all.......!