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A newer macOS usually performs better than an old one, but no system is perfect. If you keep your Mac running all the time, let too many apps join the fun on startup, or multitask with loads of heavy applications open - more often than not, your Mac will hang.Ģ. There could be so many causes, but in general, they all fall into the following four categories.ġ. Whether you own an old 2012 MacBook Pro, or a shiny new 15-inch 2017 MacBook Pro with 512GB flash storage, over time it can run slowly. Use the Table of Contents below for better navigation. The tips below should also apply to other types of Macs such as iMac, MacBook Air, Mac Pro/Mini, etc.
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