[PC Version] Interrupted accelerating, even if I keep pressing the [W] key

Hello everyone.
I got a technical problem. Often, when I drive normally, the problem occurs, that my car suddenly stops accelerating, even if it´s way below it´s actual top speed. This bug makes races unwinnable, so it is pretty annoying. The car starts accelerating again, when I steer a bit to the left and right (about two or three times), but because it takes some time to react to the loose of speed, and it costs time to steer unnecessarily the game makes me have an almost bad experience while playing. Please help and thank you in advance :D.
Yours, UGF Assault

Ah, and by the way, here´s some information about my PC, which might help you:
OS: Windows 10
CPU: Intel i5 4460
GPU: NVIDIA GeForce GTX 1060 3GB
Mainboard: MSI B85M-E45
Keyboard, I use to play FH4 + Layout selected: Logitech G413 Carbon + Standard-QWERTZ