Every time I open Skype on my WP, it always takes forever, even if I opened it moments before and had to switch to another screen or app momentarily.
So correct me if I'm wrong, but basically:
- it has to load all over again every time because of limited RAM
- it is slow to load every time it does this due to lack of processing power
specs: 1GHz dual-core + 512MB RAM (Lumia 620)
note: sometimes, even loading up Settings or Messaging takes a moment (i.e. the "loading" screen actually appears for a brief moment). I figure this is also the CPU being slow at loading very basic things (when compared to Skype) which, again, were not stored in memory.