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by unreal37 3107 days ago
My wife's iPhone has been running slow ever since she upgraded to iOS 11. Literally the day she upgraded, she's regretted.

I'll run the speed test later to confirm. But there is absolutely NO warning in iOS that I can see that says it's been put into low-speed mode.
1 comments
IBM 3107 days ago
That's because there is no low-speed mode. It changes based on a variety of conditions including how degraded the battery is (the OS tells you when it needs to be serviced once it's near the end of its life, 500 cycles), cold or hot temperatures, and the remaining battery life (low power mode decreases performance).
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shock-value 3107 days ago
How did you come to this conclusion? My 6S was running in this “low speed mode” (as confirmed by Geekbench 4 results) even when the battery was at 100%, phone plugged in, placed at my desk at room temperature all afternoon. Only relevant variable seemed to be the battery age, and the results improved (along with subjective perceived performance increase) only when I recently had it replaced.
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IBM 3107 days ago
Those 3 conditions are literally what Apple said influence performance in the story you're commenting on.
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