In recordings of Clair de Lune, I can hear that the sustain pedal is used almost throughout the entire piece, including in the middle part, which is played at a rather fast tempo. Since the sustain pedal is not marked in the sheet music, I used the pedal whenever it sounded right as I learned the piece, which means that I kept it held it down for almost the entire duration of the middle part.
Recently, I tried playing the piece on a grand piano that is placed in a fairly small room, and the sound was different from the way it sounds on the digital keyboard that I normally practice on. Perhaps due to the small room and the grand piano's power, the notes seemed to reverberate a lot more and there was more discord/notes being drowned out through use of the pedal.
A normal practice when playing chords with the pedal is to reset the pedal during each new chord, but when there are just single notes played at a fast tempo, you can't really do this because the foot moves much more slowly than fingers. Is there a good way to deal with resetting the pedal during fast pieces, or is the answer just to keep the pedal held down and avoid playing fast pieces using the pedal in a small room?
Clarification: by the middle of the piece, I am referring to the section "Un poco mosso", bar 27, up to bar 51, "A Tempo I": https://musescore.com/classicman/clairdelune. Especially in bars 45 and 46, I can barely hear the melody in the left hand due to it being drowned out by everything else.