First things first, like stated by lostinidlewonder, you have got to get that piano tuned. I agree you should definitely slow down and play everything CORRECTLY rather than fast but with a lot of mistakes. This is a very challenging piece to play so I probably couldn’t do any better but slow down. Keep this piece in your repertoire and learn easier pieces and some etudes to help with the piece. Keep playing it, practice in a slow speed, and over time once you develop your technique it’ll get faster. I admire you for learning this monster though. I don’t know the piece though, so I can’t really recommend any sepecific etudes or pieces to learn on the side, all though I know Liszt has monstrous jumps, so you could try to learn Chopin etude op 25 no 4. Learn the all the Bach 2 part inventions, as a member on the forum recently suggested to someone.