High Choke & Loss

[mowl]

I have a dedicated server hosting 3 servers, 1 18 man, 1 24 man and 1 12, they all have a choke ranging from 3 - 50 most of the time and 1 in loss. my command line is ./srcds_run -console -game cstrike -tickrate 66 +fps_max 600 +maxplayers 18 -port 27045 +exec server.cfg -pingboost 1 +map de_dust2

I have srcdsboost but i dunno how to config it thanks for any help!