Yes , i understand that it default feature of gargoyle. Otherwise i may use open-wrt
But i prefer gargoyle over open-wrt becasue GUI. Also i have problem with last lede that after i turn on my PC server for a day it will not able to access from share drive (Work fine for gargoyle and stock)

Ok i guess i will turn it off. Here is the result
Without BW monitor
Download 206.5 mb
upload 55.9 mb
BW Monitor on
Download 180.9
Upload 56.1 mb
I test it several time. I'm not sure may be because of the 200mbs internet. I use to have no problem when I use my previous isp with 50mbs internet

. I think it could be archer c7 CPU is not enough. I read some where complain about this. I'm stick look for dual core router anyway but since my budget is limit now and Archer c7 in my country have life time warranty so i guess stick with it for a while ^^
Anyway will stick with turn it off for now. As i enjoy the new GUI from ispy
Thank you
P.s. do i have to turn off it every time if i restart router ? just wonder