Upgraded from 20.4 to 21.4, copied all preferences.
A simple query on a table with 70 rows takes more than a minute.
Running exactly the same query on 20.4 (opened it next to the 21.4, connected to same database over same vpn connection) returns in less than 0.5 sec.
Executing the same query again on 21.4 sometimes runs very fast, sometimes slow - no consistency there.
Any idea what could be causing this behaviour ? Already tried increasing heapsize in jdk.conf
AddVMOption -Xmx1024m
and unchecking OCI Thick client but those don't help