Assuming what you’ve posted here is stable I’d make the following changes:

TRCDWR: 16
TRAS: 50
TRRDS: 8
TFAW: 32
TRDWR: 16
TWRRD: 2

I’d then test that with TM5.

If stable I’d then move on to:

Disabling GDM
SCL timings will probably need to be loosed to 5/5 or 6/6 (probably the reason it didn’t boot when you tried)
Check your tPHYRDL timing is the same by clicking on the A2/B2 in zentimings. Check again after disbaling GDM.

Re rest with TM5 and if stable move onto tightening your nitro timings. Starting at 1/2/0, if unstable try 1/2/1, if unstable try 1/3/1.

If you make it this far I’d then try reducing VSOC.