@Stefan, @keesj :
OK, I missed to read this post, but anyway I claim this is not true, because:
The problem is here:
–> not correct!
The reason, that FP decided to disable the Android standard EPO usage in v1.8 resulted from problems of downloading the EPO files automatically from the Mediatek servers and apply the correct checksums.
Therefore the TimeToFirstFix is incredibly slow (>1min), because there are in deed no actual values for the satellite positions.
Exatly this problem circumvents the “FP1-EPO Autoupdate”, by downloading the EPO files correctly, fast and with desired time intervals.
If you update regularly and automatically (in my case every 2 days) I never had a TimeToFirstFix of more than 30s, when beeing outdoor, normally about 12-15s.
During GPS usage I always disabled A-GPS as well as data connection.
You can read all the details on F-Droid and the linked XDA post.
If anybody does not agree: please give it a try and report back here about your experiences!