Sage 300 2018 PU4 PJC Performance

Anybody have any idea about the Sage 300 2018 PU4 PJC Performance?
Sage300 v6.0 performance is fine but slow after upgraded to v6.5 PU4 (Sage 2018).

The PJC UI always become “Not Responding” (But NOT hang).
The result will come out 5-10 mins for each detail line.

I have checked CPU/Memory/DiskIO… NOT busy..

Can you help?