git submodule add https://github.com/VIRUXE/cfx-pingkick/ pingkick
set pingkick 150 # Maxmimum ping allowed (I'd say 150 is good enough)
set pingkick_interval 5000 # Check clients pings each five seconds
set pingkick_warning "Your ping is too high. Fix it. (%dms, Warning: %d/3)"
set pingkick_reason "You were kicked for having a high ping. (%dms)"
You could also make use of my Ping Display resource.