Postgres performance issue with High CPU usage

List,

Could someone point out how can I trace what causes the edb-postgres
process with %CPU usage reaching 73 to 80.1 percentage in this box.
What's wrong with the server VM..

The clients connecting the databases experience slow responses ..

The top out put of the DB server is pasted below..

Any hints much appreciated to trouble shoot this unusual load on the
server instance.

Thank you,
Krishane.

I

top - 22:34:13 up 61 days, 7:43, 3 users, load average: 8.76, 9.92, 19.12
Tasks: 697 total, 9 running, 687 sleeping, 1 stopped, 0 zombie
%Cpu(s): 34.3 us, 18.7 sy, 0.0 ni, 46.2 id, 0.0 wa, 0.5 hi, 0.3 si,
0.0 st
MiB Mem : 31837.6 total, 1296.9 free, 11447.0 used, 27969.1 buff/cache
MiB Swap: 8060.0 total, 7400.0 free, 660.0 used. 20390.5 avail Mem

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+
COMMAND
4007576 enterpr+ 20 0 8944520 951764 941212 R 80.1 2.9 0:57.24
edb-postgres
4035945 enterpr+ 20 0 8943056 472108 463068 R 79.7 1.4 0:11.48
edb-postgres
4020721 enterpr+ 20 0 8925752 702836 689644 S 73.1 2.2 0:27.99
edb-postgres
4036409 enterpr+ 20 0 8916540 368084 363772 S 43.5 1.1 0:01.31
edb-postgres
4036410 enterpr+ 20 0 8928512 481808 469852 S 32.2 1.5 0:03.52
edb-postgres
442070 enterpr+ 20 0 8908184 181248 180096 S 13.0 0.6 1391:16
edb-postgres
4041239 enterpr+ 20 0 8921696 995.0m 986.1m S 9.0 3.1 0:00.75
edb-postgres
4041225 enterpr+ 20 0 8921856