Video of inside a cylinder

Guys.

This is a pretty cool video of what happens in a cylinder. Where can improvement be made? Looks like the incoming fuel charge hits the back of the valve and bounces towards the top of the head. Would a valve with a different shape on the backside help? How do we want the fuel charge to act as it enters? https://www.youtube.com/watch?v=UvmBLqjaZxY

Thats cool. Pretty wild to see what it actually looks like in there....