80C is normal for 5950X. Your case is important factor here as well. E.g Airflow, positive or negative pressure , exhaust fan behind noctua vice versa. You can also upgrade thermal paste to NT-H2 if yours came with H1, 3 less degrees for me.
Unless you are gonna build custom water cooling, you will not see high reduction in temperature with using 360 AIO’s. (e.g user of Artic Freezer II 420 + 5900, 70 Degree max).
Long story short, switching from NH-D15 to AIO-360 (EKWB, Artic, NZXT, Corsair etc) will not show you 60 Degrees. Enjoy your setup, looks pretty solid 
EDIT: Forgot to mention, Curve Optimizer can vary from chip to chip. Seen posts from users who set -15 or -20 on CCD1 and CCD2 respectively.