I'm happy with 45c overclocked and around 38c at stock SC clocks tbh.
No doubt I could have done other things to make it even better but a drop from 81c to 45c is amazing none the less.
Yes that's a 90 degree fitting on the pump top. Bit pushed for room but again flow seems fine for my needs.
30c under full load...seems too low to me? What setup do you have