Don't truly understand what is going on, but I ran the game today on 2 different systems and it pushed both Nvidia video cards to 90% or more.

This is way too high for a 2D game.  One system was barely a year old and had 32Gb of Ram.

Some serious GPU optimization is needed.

These are the in-game graphic settings.  I actually have the OS video resolution turned down to 1920x1080, instead of the 3k x 2k settings I typically use.