Got an OnePlus 3T, quite a powerful phone I'd say, so I decided to play the copy of MGS:Integral I ripped myself from my own copy (and that works on PC emulators - checked with Mednafen).
Hooowever, on OpenGL mode, I cannot proceed past the difficulty choice menu. Displays a black screen.
What options can I safely enable? I noticed that hq textures causes some serious artifacts and slowdowns. What are the suggested options, for best video quality and playability?