heyy, thanks alot for such a detailed review!
And good news, I just fixed the walking through walls problem :D
That was just me tryna increase performance by keeping wall collisions a simple cube, just had them badly placed haha
For the laggy experience, for me and some others, even the browser version runs quite well! Are you sure it was not your pc/laptop running on power saving or the browser not using gpu acceleration?
And for the jump not feeling right, i did try to tweak it, but just kept making it worse xD
So we decided to just keep it the way it is
Anyways, Im glad you could enjoy some of it atleast :)
Thanks for trying it out!