GPS support has regressed for me on the FP3 too. I don’t know exactly when it started since I don’t use GPS all the time. But it seems to have started with the 3.0.1 update.
There also is a report from @dave here and here that GPS locks take much longer then it should starting with 3.0.1:
It seems there is a real regression here. Does anyone know what is the best way to report this to the /e/OS developers?