I haven't moved proxies back to allocators (since the installation process), I was just thinking about it since allocators are much more powerful than coordinators in my deployment (assuming in any others as well), but again I had concerns that this wasn't a recommendation by Elastic.
I checked all the monitoring information dashboards and logs, and everything was green. The usage was super low, no obvious performance issues were showing.
The issue I noticed is that sometimes (when you run through the tabs on the left side menu) Kibana shows the first few tabs right away, and then it takes about 5-10 seconds to show the next one you clicked on. And this is constantly happening. Or sometimes when you refresh, it takes about 5 seconds to do it. The other times, it's right away.
I ran docker stats commend and noticed frc-proxies-proxy is about 10-20% on the average, but when I keep going through the tabs in Kibana and I get the 'spinning' logo of Kibana, the CPU spikes to 80-90%. The server is pretty much idle, just some test data, and it has 8CPUs and 32GB RAM.