For which systems no FPS is displayed?
Edit: Ok, by testing i found out.
You are talking about Gamecube/Wii right?
To activate FPS counter in dolphin (the Gamecube/Wii emulator), you have to press F1 on a connected Keyboard in ES Main Menu, then go to applications, dolphin-emu-config, graphics and activate "Show FPS".
@nadenislamarre this should be easy to fix, i guess?
I also tested other systems and noticed, that on 3DS there is no FPS-counter at all and on N64, when using Mupen64Plus as Emulator and GLIDE64MK2 as Core, there is only a small percentage number displayed in the lower left corner (it displays the speed of the game, so 99-100% for fullspeed). With GLIDEN64 as Core, there is nothing (no FPS counter and even no percentage number).
On all systems with Libretro as emulator the FPS-counter is working fine.