Hello Henk,
thank you for a test. You sometimes wrote "sorry", but this is really not a necessary. I should be sorry for problems and not just for testing!!
Anyway slowness of app is probably because whole log is completely full of some OutOfMemory problems. Seems that since you finished import, Locus enlarge to 30MB (which is limit on your device) and all probably started to be un-usable. How long are tracks you loaded? These 15 tracks completely filled your memory, is this possible? Or you're using some map overlays, WMS layers?
I'm sure that without tracks, it should works fine. Mainly because there were no radical changes that should have influence on app speed.
@tramp: I was reading it immediately you wrote it. Then I started checking it and found that function "save part" that is used for storing just a current recorded part do not work. So I started to fix it (and improve a little) and after that I completely forget on your post, sorry ...

- 1. so, why "stopped", when record is really just paused? Till you store record, track is really just paused, so when you cancel "save" dialog, recording will continue
- 2. ah I know ... there is a while (a longer for longer tracks) where I also sometimes think if all works fine on background or not

- 3. by stop is mean moment, when track is stored in database. Anyway since you press "OK" in "save" dialog, in this moment, track record notification should be removed from notification bar