Anbernic is having issues with GBA emulation
I have an RG35XXSP and it’s a beauty; I love it.
My issue is this: when emulating via RetroArch (regardless of the OS I use and with VRR and Threaded Video enabled) I notice stutter in certain games (like Zelda: The Minish Cup, Pokemon, or Crash Bandicoot) when moving horizontally or vertically my character. It’s a slight stutter or lag—almost imperceptible to the average person—but if you’re a PC gamer, you’re likely to notice it.
The problem seems to be related to frame pacing: Anbernic doesn't use panels with an exact 60Hz refresh rate (it's closer to 59.5Hz or 59.4Hz aprox), whereas GBA emulation requires 59.72Hz. This doesn't cause an FPS drop, but rather frame pacing issues that result in stuttering. I’m not sure if this is unique to my unit or a widespread issue, though I’ve seen several Reddit threads describing the same problem with no specific solution.
For example, u/RyuzakiTA reports it in the RG SP (the most recent one): https://www.reddit.com/r/ANBERNIC/comments/1w57h70/rg_sp_microstutters_in_emulation_592_hz_display/?utm_source=chatgpt.com