Ah that's such interesting feedback!
I actually had a shift-for-run mechanic in an earlier version of this game, but my pinky was getting tired from holding shift through every playthrough and I was like "who would walk when they can run, right?"
Based on your feedback, I'm thinking this is probably an example of overfitting the game to my own preferences-- maybe the way to handle this in a real game would be to create an "always running" user setting. Or just slow down the move speed a bit.
Anyways I'm so glad you liked it, and thank you for the kind words!