I had a release day switch and release day consoles are known to have poorer performance compared to post release models. I've had a switch since 2017 and play Competitive Platoon 2 every day, gaining almost 5,000 hours. I've recently started having overheating issues and using this external fan has really helped me. Now the game is actually playable as overheating prevented me from using the switch even for more than 5 minutes and now I can play much longer. Combined with replacing other external and internal fans, your switch will perform better than a new one.
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