Hi all. After having flashed a new version of raspbian lite, i followed these instructions to make my pi into a bluetooth reciver to use with speakers. This worked, and was able to play audio! However, the audio doesn't appear to be playing at full speed, as it sounds a bit deeper than it should and there is a big delay from me interacting with spotify on my phone to it happening through the speakers. I have 100% disabled the onboard wifi. Does anyone know why this may be, and could offer a solution? Many thanks!