Hello! Thank you for your feedback. We got some reports from some users having similar issues as yours, and we are not really sure why the input not working correctly in some devices. We have made a new patch to the game which hopefully fixes the issue.
Viewing post in There She Goes, Wriggle Nightbug! comments
Had the same issue: it's due to the game's uncapped frame rate. I had my monitor's refresh rate on 144 Hz which is the default, and seeing the inconsistent jump inputs I went "What if?" and set my refresh rate to 60 Hz - now the jumps are fine.
(I'm used to seeing games with uncapped frame rates so I know one when I play it)