I was so sorry I didn't get to hear the movement all the way through -- for some strange reason, the tape player of my computer (at least, I presume it's the tape player's fault) cuts things off just after you had done the run with the repeated low C in the bass. I too play this sonata so I'm glad to compare priorities, though I emphasize preliminarily that you are just as much entitled to your priorities as I am to mine. For tempo of the piece, I would believe in putting more assai into Allegro assai. If the Italian word for "enough" is used the way the French word for it is, "enough" this or that is typically a way to express an understatement. By "enough", they really mean "a lot". I like to impart a very strong sense of rhthym into what I do, so I don't think I'd use so much rubato. I note the dialogue that seems to be going on in this piece. We have the loud chords, alternating with the trill. The loud chords are like a person who is exclaiming about the tragedy that is reality; the trills, on the other hand, seem to be a hushed voice of denial -- especially when they usher in a modulation to G# minor. In the recapitulation, the loud chords last longer, firmly entrenching the tonality of F minor, and
then -- the trill, instead of being soft and distant, becomes loud and in agreement with the preceding chords. The second person is no longer in denial; the second person "gets it". I don't know whether you gave measure 162 all the force it deserves, but I certainly would have liked it if you did.