Thank you! I did notice the shock wave not being strong enough. I think what I'm gonna do is when npc's are hit by your shockwave, they leave you alone for a bit longer and don't immediately come back to you. That should fix most of the issues I have seen with it.
The different difficulties one is a bit harder since there is only one leaderboard per map and if it includes all difficulties then it's kinda unfair to those who play at harder difficulties. But I will think about it.
I appreciate the feedback!