Budget Android gamers: what causes the worst performance problems on your phone?

I’m following up on an earlier discussion about gaming on low-end and older Android phones.

I’m trying to understand which issue causes the most frustration during actual gameplay:

* FPS drops or random stutters
* Heating and thermal throttling
* RAM pressure or crashes
* Battery drain
* Poor optimization after updates
* Network instability

If you have experienced this, please include:

* Your phone model
* RAM amount
* The game
* What happens during gameplay
* Whether the issue starts immediately or after the phone heats up

Specific examples are more useful than general answers.

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