Android marshmallow - problems since upgrading to Premium

[Eurosimz]

Since upgrading to Premium, every time I now start the app, it is very laggy and often crashes. I have cleared the cache and even reinstalled. Problem persists.
Xperia Z3c

[Joe]

Has anything else changed? Do you have a lot of downloaded music, for instance?

[Eurosimz]

I did download an album but that was cleared when I deleted all Spotify
data for the reinstall process.

[Joe]

OK. Could you explain how this lagginess shows? Is the app slow to open, slow to load screens or what?

When does it crash and what do you see? Is there a system message saying the app has stopped working?

[Eurosimz]

When it crashes there is no warning or message. The app closes.
It seems to be OK for now. I haven't had the issue for 2 days.
Thanks for your assistance.