How can I get a faster fix with the GPS ?
Official Nokia advice: position the tablet on the stand so it is roughly vertical.
Other suggestions:

* Make sure the tablet clock is set correctly (see hwclock). More importantly, don't keep changing it - if it is different from what it was when the almanac was saved, a fix will take longer. The system clock is set from the hardware clock on boot, but is not normally written back to the hardware clock on shutdown if it is changed by e.g. ntpdate, so will revert on reboot.
* Keep the almanac up to date by occasionally starting the GPS and getting a fix.
* Go to a location with a good view of the sky in all directions. Try to get outside and away from trees, tall buildings etc.
* Point the tablet to the south.