MGS - Stelth mode (new game plus) dramatically reduces framerate

[jdalmanza]

In Metal Gear Solid, once you complete the game with specific conditions you are granted a bonus item for a new game plus. One is an unlimited ammo bandana the other is a stealth suit that you can equip any time in the game.

Using swanstation 1.0.0 on lakka (5.x nightly build from 01-OCT raspberry pi 4) RA 1.10.0 vulkan hw renderer

If I equip the stealth accessory the framerate drops down to about 11fps. Changing the renderer to GL increases to about 30fps software renderer plays full speed 60fps.

This issue is not present in pcsx-rearmed in the same lakka build. Issue also not present on x86-64 swanstation core 1.0.0 on ubuntu running ratroarch 1.16.0

I have attached my savegame file so you can test (Metal Gear Solid.srm)

Metal Gear Solid.zip

If there is additional testing deeded to be done or logs collected, please let me know