Meteor Cloud - CPU Issue - Node GarbageCollection

I have been running fine for the longest time with
1 cpu, but now its ran up to 100%,
upscaled to 2cpu still at 100%
upscales to 4cpu now at 10-20%

  • 190 constant connections,
  • 300mb of ram used so not very high.

was getting a v8 heap garbage collection issue, something with the recent version of node, is hungry maybe?