OC not working first time miner is running? Using start.bat

I have OC set in my config
-cclock 1150
-cvddc 0850
-mclock 2000
-mvddc 850
-tt 57

The first time miner starts all gpus hashing 24.9 mh/s in eth.

If I close the miner window and open start.bat (which contains gpu force etc as mentioned on first page) the miner starts and gpus is hashing 30.x mh/s

Amd 18.2.3 drivers, compute mode enabled. (Trixx, wattman and amd settings etc is not installed).