I am having a bit of a struggle in Ultra. How do you become faster in moving the pieces. (Yes i do premove)
Practise hyperbullet against Stockfish. Yes, you will lose a lot, but it will help. Also do Puzzle Storm if you want to improve your ability to see tactics faster - this will be essential, since most people will try to move fast in the opening, you will often see people try to Scholar's Mate you, and spotting their blunders will be essential.
Don't move carelessly. This will only take you to about 1200-1300 depending on your speed
Hope this helps!
No problem! I hope you get better :)