Tat is like 22.5 or something close to that. The first few times I played Tat my time was soooo high and kept wondering how people were doing better than I by like 7 seconds. It turns out that I kept avoiding all the little speed things on the ground because I thought they were debris. Stupid me.
All I can say is make sure to hit as many speed things as possible.
Don't change gears too soon because it doesn't work as well.
Don't run into anything.