I’ve noticed what I believe to be artificial slowdowns on some cores (Parallel using Angrylion and Flycast are the main culprits) where the fps counter sometimes dips down into the 40’s or 50’s during gameplay and the estimated screen framerate also dips down accordingly.
I seem to be able to bypass this by either turning off Audio Synchronization (which then locks the frame rate to 60 at the cost of audio crackling) or by pressing the fast forward button (which usually results in the frame rate going way past 60).
By the fact that both these options produce higher framerates (moreso in the case of Flycast, I’m aware that Angrylion is very resource heavy), I feel I have overhead for my computer to not to be at its limits and that leads to me to believe it may be a configuration issue. I’ve tried lots of options regarding Vsync (including messing with the Nvidia Control Panel Vsync option) to no avail.
This is on Windows 10 everything up to date, using the GLCore driver (seems to happen on GL and Vulkan as well).