Fully agreed with ULTRASONIC_77
On the T300 with F1 23 you should Turn On the "Forced" Cooling Mode.
Explanations:
On F1 23, with the T300 & the TX, the power of the Force Feedback effects automatically decreases (to protect the motor of the wheel) more quickly than on F1 22.
This is because, on this new edition, the Force Feedback is stronger than on F1 22, with lot of more spring effects, and so the wheel is hot much faster and reaches a much higher temperature level.
Full details here: https://ts.thrustmaster.com/faqs/eng/thr_eng_00156.pdf
Will also affect strongly the FFB fade:
- The hot weather of the room where you play
- The weight of the wheel rim you are using. Quick example: TM OPEN WHEEL (the weight in only 0,8Kg) - SF1000 WHEEL (the weight is upper 1,2Kg)