but here is a thing, the sticks dont seem to work for landing which resulted in a crash for me
I had a similar issue. Fly really taxes the SC. Be sure to save any files off the SC and perform a factory data reset. I did (as others have) and it helps a lot. I had several apps that were not needed that I did not re-install.
I have literally installed nothing. All I've done is take it out of the box, update it, and link it with my drones.