Maybe make it have some effects to it and make it a little faster

Make those leg movements a bit more fluid. Move every part of the leg starting with the thighs, then the lower leg, then the feet.
Kind of like this:

Also, you may want to improve those rapid punches. Keep the arms on the figure instead of deleting them like you did, otherwise it breaks the illusion of many punches at once.
I’d advise also putting dash effects on the arms of your figures. If you also put punch effects where they are punching towards, it looks even more realistic.
Doing all of the above will look something like this:

I’ll link a file containing some things to help you:
(Just a warning. Make sure you save any Sticknodes project you’re currently working on before opening this file, otherwise you will lose your progress!)

https://mega.nz/file/u4EQjLYS#2zCEq2dpqj6xHBQhk2E8WdeM7pw8ch2BRCRwMZwDL1M