FPS Drops Persisting after 1.36 and hotfix

I have been experiencing persistent FPS drops in my custom map after the 1.36 patch. This has persisted after the hotfix that rolled out recently. My map ran fine in 1.35, but after 1.36, it plateaus at around 140 FPS, only to “dip” consistently every few seconds to 100 or less. It creates a very jagged experience when playing.

I have disabled or deleted most triggers, and yet the issue persists. That said, when I play normal maps, the frame rate is more consistent. I suspect something was done in patch 1.36 that interacts very badly with my map. EDIT: I should also add that I only play with SD graphics.

DxDiag