The problem is that   a lot of times when the cpu of mesh reaches 100% , some devices  dont have access to internet for some seconds . There are only 4-5 devices connected to  mesh system.Also   m4 mesh support qos. The qos which has ,cant give you the option to make adjustable the internet speed for each device  ,  only can set high priority which doesnt do anything with 50 mbps   internet speed.