KERNEL : Boeffla vs AGNI PURE STOCK vs ArchiKernel topic

Welcome to my Samsung galaxy s3 use rom Blekte Note 4 (Android 4.4.4)

I do not know how to choose the kernel so experienced users ask :)
Boeffla Kernel
or
AGNI Pure Stock Kernel
or
ArchiKernel

I care very fast system, and performance in demanding games.
I wish I did not have to lag and applications open at once.

If I wrote in the wrong section please move this topic:>