Thanks for the feedback! :-) I updated https://github.com/renato-grottesi/moonarchists/issues/15 with your comments and I'll try to fix them after the voting period.
About aiming at high speed, did you try the non-cross-hair mode in the options? That was the default before people told me that it didn't feel natural, but I think it's better for more accurate aiming. I'm still a bit on the edge on which is better...