the sound is out of sync with the video because you were going faster than the speed of sound (but not light). Great to see Scott still out there taking pics too, he has been spectating, photographing and occasionally trying club motorsport for years
Excellent driving there, nice and smooth and it is damn quick around the top of the track in particular. It also looks like you have a favourite passing spot
As for mods....all I can suggest is do as little as possible! You are getting more race time than everyone else on SAU put together!
Sure you can make it go faster, but can you afford to spend your way to the front? And even if you did, do you think it is more fun chasing/dicing with someone, or running away at the front....I know which one I'd pick.
You are obviously enjoying your racing, have been making a lot of events (therefore staying within or close to your budget) and having fun. Why change that?