Thanks for the response, but the lighting bug is still there with those settings (have also updated to the latest build). Not the worst thing, because with Write Color buffers on, the game is practically unplayable anyways.
Playing the game in windowed mode close to 2140p and it runs fine in Vulkan though I have to enable the fps limiter or else the game goes too fast.
My only issues so far: - Akira's last stage has slow speed in Arcade mode. I've got 45fps average. - Same for Eileen's Ruins stage. Moreover, the level of the sand is higher than normal as you can see below: