just to share some different settings, i took these from a redit page somewhere, i forget who though so sorry cant credit the OP
{
"pools" : [
{
"url" : "http://eu-01.miningrigrentals.com:3333",
"user" : "pugwilfy.5666",
"pass" : "x"
}
]
,
"rawintensity" : "131088",
"worksize" : "128",
"algorithm" : "talkcoin-mod",
"lookup-gap" : "2",
"thread-concurrency" : "13188",
"shaders" : "2048",
"gpu-threads" : "2",
"gpu-engine" : "0-0",
"gpu-fan" : "50-50",
"gpu-memclock" : "0",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "95",
"temp-overheat" : "85",
"temp-target" : "60",
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"failover-switch-delay" : "60",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"log" : "5",
"no-pool-disable" : true,
"no-client-reconnect" : true,
"queue" : "1",
"scan-time" : "60",
"tcp-keepalive" : "30",
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/kernel/"
}
this is getting me a solid 7.8mh/s on a giga r9 270x, i use the same settings for x11/13/15 and get 2.5/2.0/1.5mh/s