I didn't change anything with the PC, all I did was fix the walls, but I'm glad it feels better regardless.
I will be adding instructions to the page but just wanted to mention in case you didn't realize as it is not very clear (which is why i will be adding instructions, bad design on my part) but you can click on the enemies to push them away, and if you push them away enough times they will "walk away" and disappear, which might make the game a little easier, also you decrease the meter when they "walk away" from you.
Hopefully that makes the game a little easier and more enjoyable.