Worked in a place where the local architecture astronaut had taken over and we were subject to his insane designs that were virtualisation and microservices everywhere. A monolithic lump on a server would have been better, cheaper, faster in every way and needed many fewer cores.

But your case, ok, understood.

BTW The biggest slowdown IME is not from lack of cores but lack of RAM. Odd that no-one's mentioned that. Or using a server with larger numbers of memory channels to keep their cores fed. I/O > cycles more often than not.