have tried 3 different low-end x64 systems with 4 “high-end” cores (Lakka 2.0).
all 3 systems use the integrated Graphics and i had “Video Threaded” disabled in Lakka-Settings
Intel NUC NUC5PPYH
Pentium N3700 Braswell 4x1.60GHz (Turbo 2.4Ghz max)
DC-Core (Reicast) no change playing without heavy stuttering in most Games
Saturn-Core (Mednafen) no change playing without stuttering and frameskipping in many Games
N64-Cores (Mupen, ParaLLEI) no change playing without heavy stuttering in many Games
PS1-Core (Mednafen HW/SW) plays with little stuttering in many Games (especially noticeable on audio)
SHUTTLE Barebone XPC nano NC01U
Celeron 3205u Broadwell 2x1.50 GHz (no Turbo)
DC-Core (Reicast) plays with little stuttering in many Games
Saturn-Core (Mednafen) plays allmost fine but with little stuttering or frameskipping in many Games
N64-Cores (Mupen, ParaLLEI) plays with little stuttering in few Games (especially noticeable on audio)
PS1-Core (Mednafen HW/SW) nearly no stuttering on most games
ASROCK DeskMini 110
Pentium G4500 Skylake 2x3.5 Ghz (no Turbo)
DC-Core (Reicast) runs great but with very little stuttering or slowdowns in few Games
Saturn-Core (Mednafen) no stuttering on most games
N64-Cores (Mupen, ParaLLEI) runs great but with very little stuttering or slowdowns in very few Games
PS1-Core (Mednafen HW/SW) no stuttering on most games
sorry for my worse english, but maybe it can help a bit.