Hi Daniel,
I am using below modules
loadmodule "db_mysql.so"
loadmodule "mi_fifo.so"
loadmodule "kex.so"
loadmodule "corex.so"
loadmodule "tm.so"
loadmodule "tmx.so"
loadmodule "sl.so"
loadmodule "rr.so"
loadmodule "pv.so"
loadmodule "maxfwd.so"
loadmodule "usrloc.so"
loadmodule "registrar.so"
loadmodule "textops.so"
loadmodule "siputils.so"
loadmodule "xlog.so"
loadmodule "sanity.so"
loadmodule "ctl.so"
loadmodule "cfg_rpc.so"
loadmodule "mi_rpc.so"
loadmodule "acc.so"
loadmodule "auth.so"
loadmodule "auth_db.so"
loadmodule "permissions.so"
loadmodule "alias_db.so"
loadmodule "speeddial.so"
loadmodule "domain.so"
loadmodule "presence.so"
loadmodule "presence_xml.so"
loadmodule "nathelper.so"
loadmodule "rtpproxy.so"
loadmodule "tls.so"
loadmodule "htable.so"
loadmodule "pike.so"
loadmodule "xmlrpc.so"
loadmodule "debugger.so"
Please help me to increase the performance for SUBSCRIBE by using kamailio configuration.