I really like this game, I played again and somehow I did it with no death and in about 1 minute 6 seconds.
I think the current record is faster than this, but I was dying many times and taking way longer than that before, to go from taking that long to just over a minute and no deaths is a surprise to me actually.
Spoiler warning
https://www.youtube.com/watch?v=wPXEzz4coBE
The part with the spikes I had trouble with before is easier for some reason if trying to go for deathless (or dying slightly earlier) because the storm is farther back (at the sacrifice of a few seconds) and it's possible to get away with clearing this part with "less skill". Someone who has already died by that point is probably worried about just finishing the game rather than finishing it too well. Someone who died here is then is punished with having to do better in this part and may actually find it easier to start over - I find that interesting.
I was able to do it your way you showed instead of the less clean way I do it in this video, but I did it in some run where I took way longer than this and died many times already.
Thanks for making this game, I really enjoyed it!