I only got 240h/s on 11.1

Im using rx 480 8gb stock rom




my bat confg >>>

GPU_FORCE_64BIT_PTR 0
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100

ZecMiner64.exe -zpool hub.miningpoolhub.com:20575 -zwal john1010.MyPC -zpsw x -wd 1 -r 0 -tt 80 -tt -72 -i 8 -a 2

Can someone share his confg, or Am i missing something?

Thanks