Not sure, fps drop issue

[mrpickle27]

Not exactly sure where to post this issue. I have been playing Pokemon XD Gale of Darkness and anytime i go to purify the shadow i have captured the fps drops from 60 to a very stuttering 4-17 FPS range and the audio also tears and stutters as well. If you need to see my dolphin settings i can post them if needed, thank you for any help.