Since you're on a level where you clearly play very well, I will just write some suggestions.
My main issue with this performance is that the line keeps breaking, making this movement (one of relatively few big movements in his output) into several small ones.
It also makes many beautiful movements not as special as they could be.
To me, this movement starts in a climax - something is already established - and if you do so much rubato as you do, the "echo" replying just feels somewhat unnecessary.
Then the new motif at 1.10 is also heavily spiced with rubato. If you have Christmas eve on every note, it's no longer special, but even becomes a bit "annoying" (in context, of course), as one never can feel at ease.
You might then reply with that Schumann himself stated that this was his most passionate work, but what is passion if one always is passionate?
Because then the slow theme come, and you play it very beautifully... but it feels almost plain and flat as everything before was so very passionate.
And what then at 3.40? The harmonic tension is here so strong that something needs to grow, but you already sort of used it up, and it's 10 minutes left of the movement.
After this, the left hand from the beginning arrives. Have you considered to not stop, but to let it grow out of what you just played? Like, the left hand goes down until it arrives, and then just continue.
But you really play very well, so just take these as suggestions from a stranger from online