All in all this movement is a bit too careful, *maybe* careful in tempo (note the marking), but surely careful in mood...there really can be some terror about it, and part of that is involved in putting it all on the line, risking everything. Really that *maybe* is there because I have no problem with your chosen tempo, where a certain power, majesty, and drama can easily reside; but right now I feel it is missing the whispers, missing the screams. In this structure there is a balance to be kept in the different grades of dynamics, that all the expression must be kept in the bounds of that given grade at that given time (which also allows the marked crescendos, especially the two huge ones more drama for the contrast), and then there is a sort of curve to the structure, that when the theme reappears in the left hand, it ought to be of an emphatic wildness that is much greater then it's first appearance at the start, with everything else leading to that moment, or better said, *defined* by that moment.
"Embedding disabled by request Watch On You Tube"I never had this problem before in PS, whereas I listened to recordings before with no problem.