Glad you enjoyed it! I had such an awesome time watching you play. I'm glad you think it loaded well, I have no idea what's fast or not but I may have over-engineered the level loading system. I totally goofed up with the ultra-wide resolution! I'll have to keep that in mind in the future.
I can totally see that about the mouse aiming. I think a reticle would work actually pretty well just like you said, or some sort vfx pulse around where you click could work rather well too.