the drivers setting is set to open gl i also tried vulkan too i am currently using the latest version of retroarch but i have noticed this happening on earlier versions of retroarch too.
i have the newest version standalone version of ppsspp installed and that works fine with good speed too. i just curious as to why it does not work on retroarch as other cores work very well on it
i downloaded the archive, there is more than one assets folder, as i am using android do i use assets folder from the ppsspp-master\android\assets directory?