Hey thank you so much for the information!! I was able to recreate the exact scenario you described I reworked the collision checking logic for the poison clouds and changed how the game handles having multiple instances of the clouds. Plus put some cleanup logic in to remove redundant clouds which were simply wasting CPU time but not contributing to meaningful damage. It's performing much better on my machine now, but still need to do a little more testing.
The duration increases, along with enough damage to keep destroying enemies was leading to 500+ clouds stacking on-top of each other if circumstances played out right.. Thanks again for the help :)
1 day ago (+1)
Managed to find another slideshow 83 degree setup
This screenshot was from before it got really bad. But basically some combination of when heal do x and when crit do x and spamming ability cooldown every upgrade made it so that every time I used my ability the next ability would go off slightly faster, infinitely.
I never found the "create poison cloud on explosion" perk. Because I had the "explode on poison cloud ending" and "2x Explosions" so that would have been an infinite loop on its own that would get twice as bad every cycle.