Please check out the latest update, i tried to improve on how challenging the tracks are for the early game. I doubt i'll ever make it a pure "trials" game, but you are right that a higher difficulty in the beginning can make the game more fun.
(I guess it is hard to find the right balance between "easy to learn, hard to master")
I also brought an update for iOS, feel free to check it out and let me know if your issues are gone.
Thank you guys!