Gamecube, PSP, Saturn are very slow. The games of these systems are opening but very slowly, low FPS and audio locking. I think the reason is driver issue. What do I do to solve it?
pericles You must be using some old batocera's firmware.
Upgrade to 5.12 or 5.13, and your grafic card shall run perfectly!
On Windows 7 I had a similar problem with an older nvidia graphics card (gtx 570). The problem was that the chip clock of the card stayed on the minimum speed what worked okay in 2D (Windows desktop) but not in 3D games (it was slow in sll kind of games). The problem was the nvidia driver. I found a forum post where someone mentioned an older version (I don’t know it currently) where the problem didn‘t occur anymore after I installed it. So try to download and install an older (from around 1 year ago) nvidia driver.
Anther reason could be the power management setting of your graphic card (it can be changed in the control panel) is set wrong (maybe you should set it to maximum speed)