Hi Monica, I haven't studied this piece, but as far as tempo goes, it will come in time. I think it's an issue with comfort and familiarity with the music, and it will come when you least expect it. If you've been practicing it incessantly, get away from it for a week, then come back to it. I am sure you'll nail the tempo of your desire.
It's a wonderful piece and well recorded. Never underestimate the power of the soft pedal... Pardon the pun.
It is quite the equalizer for smoothness in running passages. I always have my left foot on it, you never know when you'll get the impulse to use it. In a sotto voce, it's a given; to render evenness in a p or pp passage, it's there for deployment. Ha, maybe it's because I drive a stick and always reach for the clutch pedal to shift.
When playing in one's living room, it's fine. But if you're recording with the intention of adding reverb to a fast piece like this, I would use less pedal - the reverb acts like a double pedal. Also on fast pieces, you'll have to do some tweaks. Make the room size smaller, decrease the reverb tail (e.g. less than 1.7s), and/or allow more dry sound to enter the mix (eg. less than 15%).
How do I know it's a great recording?... I listened to it more than once.
There are places in toward the end that are very poetic!