AlwaysOn Recovery causes CPU spike CPU 100%

Hello All,

We have a 3 nodes AlwaysOn environment(Windows 2012 R2 + SQL Server 2014 + SQL Server 2012, all latest rollup installed).

Sometimes the CPU stuck on 100%, all clients complaining the system is freezing, we have to shutdown some instances or drop some cpu on those instances.

I am wondering if there is a way to put the recovery operation in a specific resource pool and limit the cpu on that pool (I checked the internal pool which is not changeable)? or there is other ways to work around?

Thanks,

Albert