OK how is this for ironic, I’ve been trawling the web for days now looking for the answer and eventually had to admit defeat and post hear for an answer. Then literally minutes later I’ve cracked it myself.
I changed the audio hardware ASIO setting from that of my soundcard to the premiere ASIO, I then bumped up the buffer as far as it would go and it solved the problem. The audio is now perfectly in sync and all issues resolved. whooop!!