Sound on engine startup

[DJBlacklight]

Hi, I just got the game and everything is working fine except for sound when starting up the planes.

The issue is when starting the plane up as the sound is very choppy and sounds like there is some bug between the sound channels. I only tried the spitfire and moth so far and its the same on both.

I thought potentially it was my sound card or issue with my sound setup but ive tried switching between 5.1 and 2 channel and the outcome is the same

Has anyone else had the same problem or is there a fix for it?