You still using LLE audio? If so, don't.
You should follow the admin89's laptop performance guide. Note the parts about using ThrottleStop and how to set Dolphin to use your Nvidia GPU.
https://forums.dolphin-emu.org/Thread-unofficial-laptop-performance-guide
Additionally, try setting your FPS to Auto and uncheck Limit by FPS. Limiting by FPS has the odd effect of specifically causing slowdowns in battles for me.
You should follow the admin89's laptop performance guide. Note the parts about using ThrottleStop and how to set Dolphin to use your Nvidia GPU.
https://forums.dolphin-emu.org/Thread-unofficial-laptop-performance-guide
Additionally, try setting your FPS to Auto and uncheck Limit by FPS. Limiting by FPS has the odd effect of specifically causing slowdowns in battles for me.