using the fly ability slows you down, try to just use jump and double jump and save the fly for if you miss the ring, the ring at 0:26 can be skipped and go straight for the key, ill try to re-do it for a video for you, its hard to explain, but just double jumps, try not to fly, and skip the hoop by the final key

I re-did the level, i hope the video is more use full, Best of luck!
https://youtu.be/VkHtnJ4s8RQ

Ah thanks, that's good to know. I thought that the fly ability gives me a boost.

it dose when your at rolling speed, but your speed when going down that hill is faster than the boost, so using it actually slows you down, but its hard to tell with how fast everything is going by, i didnt realize it either until i tried a run without using it and realized it was a lot faster