OEM controller and Rumble Pak in the dual adapter, as seen in the example video below anytime the controller rumbles the game hitches quite a bit.
https://cdn.discordapp.com/attachments/899250786930925598/1099492593735303310/Rumble_Pak_in_vs_Rumble_Pak_out.mp4
First segment: Rumble Pak is in
Second segment: Rumble Pak is out