According to the log, the card self-identifies as a Radeon R9 M370X, a 2015 mobile card that's actually a rebranded Radeon 7770, which itself is 7 years old at time of writing. It really isn't "fast" by modern standards; it offers about the same performance as a desktop GTX 1030.
Unfortunately, there's not a lot to be done, performance-wise. From the log, I can see that the real performance-hungry feature (shadows) is disabled; It might be possible to claw back a few more FPS by also turning off post-processing (Glowmaps, on the other hand, have a negligible effect on performance; disabling them is only recommended on systems that are really starved for VRAM; the 2 GB your card should come with are plenty). Other than making sure that you're using a release build and that the lighting settings in-game are set to 1 or 2, there's little you can do to improve performance.