I have framerate issues while playing some ps2 games on csx2.

The ones i have tried playing
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Ape Escape 3

Vampire: Darkstalkers Collection
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Ape Escape 3 is completely fine until I go near the warp pad in the hub world, it drops from around 58-63 frames to 42-36 frames.

Vampire darkstalkers collection is fine until I select any of the games. It goes from 59-60 frames to 24-19 frames

My pc specs
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Processor: AMD FX-8370-4000 Mhz

RAM: 16gb

Graphics card: Radeon (TM) RX 480 Graphics

OS: Windows 10