However, while some of these issues are simply due to console’s lack of power, others are related to a problem in the most unlikely place. The Nintendo Switch’s Wi-Fi system is reportedly responsible for higher than usual load on the CPU, which, when occurs, negatively affects the frame-rate of the game running.
This is according to a Nintendo Life report, which identifies the Wi-Fi ‘Auto Connect’ feature as the likely culprit here. Every time the console tries to search for a wireless network, it hits the CPU in a way that hurts the frame-rate of whatever game is running.
This happens in the background, which could explain why frame-rate drops are sporadic and inconsistent. An anonymous developer told the site that Nintendo is aware of the issue, and is working on a fix to be included in the next firmware update.
Though anecdotal, a Nintendo Life reader has seemingly had better luck when disabling the Wi-Fi ‘Auto Connect’ feature, to prevent the CPU hit. You can also enable Flight Mode for the same effect, though it does not work when the console is docked.
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Related Forum: Gaming Discussion
Source: http://www.vg247.com/2017/03/13/nintendo-switch-wi-fi-issue-causing-frame-rate-drops-nintendo-working-on-a-fix-report/
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