Slow TF3D performance when using bluetooth carkit

[arri757]

Both my Diamond and Touch Pro slow to a crawl when connected to my factory bluetooth in my bmw 3-series. All the features work, but TF3D is unusable until I turn off bluetooth. This happens with no applications open.

On the Diamond I'm Running Groovy's ROM, the Touch Pro still has the original ROM.

Also, other phones I have, Treo 700p, Centro, etc. work just fine.

Is anyone else experiencing a similar issue? I did a search and didn't find anything...