Why does Project64 run so slow with CFB/Primary Framebuffer Emulation in use?
PCs are very slow at these operations (copying contents of video memory back into main memory), due to their architecture, and not because the plugin is bugged. This is up to future graphics card and system bus designers to improve, for now i’d suggest generally just don’t use it. (For your information, the N64 is very fast at this because it has a single block of shared memory).
