The High Temperature Property is widely known to reduce lags on some devices but nobody knows EXACTLY what it does, but here's an explanation:
We all know that thermal throttling of the CPU occurs when the CPU gets too hot. The CPU will then throttle down the frequency of its cores when they reach a certain temperature.
This is how I've understood it after reading many many thread on this topic.
1. LG has set the temperature threshold is lower than the threshold set by Qualcomm. LG's throttling is, in other words, more agressive than the default is. So by putting it OFF, the Temperature threshold is set to Qualcomms limit. What that means for the user is, that instead of CPU frequency throttling starting at 60 degrees Celsius it will then start at 70 or 75 degress.
This allows the CPU to run at max load for longer periods of time and allow it to run hotter - while there's no evidence that it will damage the chip, it's there for a reason and I wouldn't turn it off since I occasionally play demanding games.
Why it exactly reduces lag in the man UI is something I never figured out. After updating to 4.4.2 I never really noticed lags in the UI.
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