Unhappy bluetooth headsets compatibility issue with Android OS!!!

hi ive been using v5 rom on my f320l for last 2 weeks. it seems ok to me except the wifi signals keep dropping n only works well sitting next to router.another biggest issue is that i use nokia BH-214 bluetooth that works flawlessly with my iphone 4s and samsung c3212i but not with my android lg g2 running v5 rom. im not sure if its bcoz of the compatibility issue with V5 rom or bluetooth devices just don't work well with android OS.plz guide me!!!