When drawing spells, at the start you can't really draw much. But if you move your mouse very quick you can draw very long lines, and when run it lagged very badly. I can provide more explanations if these were not clear. Let me know!
Alright... Drawing fast was a thing, true, not sure why this thing was lagging tho, cause from my understanding it is the same as drawing small ones in terms of memory/time complexity, so idk xd But still thanks :3
I went back to try, it seems it is the explosion that triggers the lag. I draw the big lines, put an explosive on some lines and when the projectile reaches the end, it freezes/lags