Fps drops from 30 to 15 on Snapdragon 625 - why?

See video: castle views is 30 fps, running view is 15, why?
What am I doing wrong? How to find and fix that?

As exit from running to castle view returned to 30 fos again, I would not believe it us overheating

 

Hey unity forum, are you dead?
As recommended on Reddit, I tried t turn off second camera and vsync, and it helped greatly.
Any other tips?

 

You didn't provide enough details, such as Unity version, device model & Android version.
Some of the possible causes of framerate being cut in half:
1) Your QualitySettings.vSyncCount property is to 2. This causes the engine to output one frame update every second screen update.
2) Your device is overheating, causing it to engage thermal throttling, reducing hardware performance in an effort to decrease the temperature. I find it often happening for example on Samsung Galaxy Tab S2 with more demanding games, when suddenly the framerate count is cut in half.

You should try the builtin profiler & frame debugger to detect performance problems. I assume, that if you compare these two situations, you will see that the lower framerate one probably has much more draw calls and/or overdraw.

 

Ok, thanks!
Unity 2019.2.6
3 different android devices actually, Snapdragon 636, 625 and veryold Lenovo vibe x2

Overheating really is not the case as I tried it on cold devices.

What other tips for android optimization do exist for 2019?

 

When you enable vsync, a display cannot be variable. You can't have 58fps for example, it will drop to 30, which is half, each time. It rounds down if that makes sense. If you do not want this behaviour you will have to:

• disable vsync
• optimise
• lower resolution

Simple.

Forum is not "dead" if someone doesn't bother answering a post that is a duplicate (your question is asked by people at least once every week or so because apparently google doesn't work for them).