Hey there, thank you for your kinds words :)
You can do more tricks per round after buying the "Coordination" upgrade
Pro tip: getting a bunch of upgrades will easily break the game
"Insight" doubles the number of slick points you get per trick, so getting this upgrade about 1024 times will give you infinite slick points
From then on, you're free to buy each upgrade as many times as you want, setting the cooldown of tricks to about 0 seconds, removing pick ups from the game completely and becoming a demi-god by having too much HP
I hope this helps :D