Hi @Drconfused
Your phone will naturally heat up dependent on the background processes to what app's your using and how your using the phone such as watching movies or playing games.
The phone has a built in chamber to channel heat to the outside to dissipate.
Certain cases may hinder the dissipation.
Your phone is only showing an issue if you see a warning pop up message or the phone shuts down.
None of my Samsung Galaxy Ultra phone's or Note phone's have heated up to the point of the phone shutting down or being too hot to hold.
You could try > Clear Cache Files from the phone's System Partition Section > https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/ You may need to insert your earphones or hook upto a powered On Laptop to access the Clear Partition Section. This may help with lag or stutters as this clears the phone of old/unused or broken cache files.There is also a Repair Apps option in the Menu System too.
If I can be of any further help then please don't hesitate. Take care. π
Daily Driver > Samsung Galaxy sΒ²β΅ Ultra 512Gb ~ Titanium Black.
The advice I offer is my own and does not represent Samsungβs position.
I'm here to help. " This is the way. "
