Is there a reliable way to get constant character movement speed?

I’m using timeline mainly for my game’s cutscenes. Nothing extremely complicated or fancy here, just a classic top down pixel game (think early Pokemon or Harvest Moon). My main issue is that it takes forever to create just one single cutscene mainly due to character movement speed. I’m changing a characters position in one track and then having another animation track to play whatever walking animation is needed at the same time, but I keep having to tweak everything a million times because I can’t seem to get the number of frames a given movement distance should take and sometimes my characters take forever to go from point A to point B and other times they move at the speed of light. Is there an extremely obvious calculation here that I’m missing?