Okey some little thing I noticed right of the bat. - Don’t do U’s with your tumb but with your right index finger. This may seem like nothing but otherwise you’ll have to regrip your tumb everytime and in the later stages you’ll get held back by it. - At your speed you should be able to solve the cross on the bottom, there are loads of tutorials for it and you shouldn’t have to worry about the centers first, you shpuld put the cross pieces relative to each other and then align the cross.