I've got an eMap - last time I tried it (after it was off for N years), it took upwards of 20 minutes to get a fix with a clear sky because it could only track

I've got an eMap - last time I tried it (after it was off for N years), it took upwards of 20 minutes to get a fix with a clear sky because it could only track (AFAIK) 6 satellites and without the hints from recent use, it struggled badly.