have disabled the LLDP agents under Network > discovery protocols > lld agents and the result was amazing
PID USER STATUS RSS PPID %CPU %MEM COMMAND
503 root S 12M 340 3.1 0.6 statspoller
480 root S 39M 340 2.3 1.9 openvpn
555 root S 4920 406 0.3 0.2 postmaster
435 root S 2804 340 0.3 0.1 nbstationsd
545 root S 3952 406 0.1 0.1 postmaster
365 root S 112M 340 0.0 5.5 regng
568 root S 20M 340 0.0 0.9 iprulesmgr
694 root S 12M 503 0.0 0.6 statspoller
433 root S 10M 340 0.0 0.5 rccd
447 root S 10M 442 0.0 0.5 rccd
16043 root S 10M 442 0.0 0.5 rccd
16047 root S 10M 442 0.0 0.5 rccd
442 root S 10M 433 0.0 0.5 rccd
12132 root S 10M 442 0.0 0.5 rccd
16050 root S 10M 442 0.0 0.5 rccd
482 root S 9596 340 0.0 0.4 mapconf
540 root S 5348 406 0.0 0.2 postmaster
492 root S 5316 340 0.0 0.2 maestro_sc
14387 root S 5260 340 0.0 0.2 webs