Andor's Trail

The game lags and slows down considerably on certain new map screens. So far the dungeon in the rose quest, and the second room of the cave after the caterpillars.

To look at it we'd need some more details.

When does it lag exactly - anything special at that time? or maybe just when you enter the map?

And what type of smartphone and which android version do you use?

I'd suggest disabling the "High quality filters" in the preferences. Some devices have issues with the Android feature we use for visual effects. Please tell us whether it works for you or not.

Once I enter the map movement speed and combat speed slow down dramatically. Maybe a resource problem with certain map screens. I use a Moto E5 play, I think it uses marshmallow. I will try changing the settings to see if it helps.

Changing the settings fixed the issue

Same problem here with 2~3 map-screens (incl rose quest & the related jail-dungeon) ..significant slowdown.
Good to know there's a likely easy fix, thanks!

Running 8.1.0 on an LG Rebel 4 if it matters/helps.