PPPOE-Server with 500 customers

I only use the Mikrotik for a PPPOE -Server, yesterday i upgraded from 2.9.46 to 3.3 and now my CPU makes me crazy. It idles beetwen 80-100 %.
Before it idles from 30 - 40 %.

Has anybody a solution for me?

Or can tell me the best config for a PPPOE -Server.
THX

well, when we upgraded our 2.9 to 3, cpu usage increased by 50-60%… it’s just routers, no nat, no ppp, simple firewall