Trouble shooting poor performance on a 4k monitor? Macbook

Nov 14, 2019 Is Your macOS Catalina Install Stuck? Here's How to Fix It Oct 09, 2019 MacBook keyboard issues: What to do if MacBook Pro MacBook Pro (13-inch, 2019, Four Thunderbolt 3 Ports) (added to program in May 2019) MacBook Pro (15-­inch, 2019) (added to program in May 2019) Trouble shooting poor performance on a 4k monitor? Macbook Hi all, I have a Macbook pro 2015, the specs fit for running a 4k monitor. However, it has been noticeably slow on the new monitor. It also has significant input lag in some applications. How do I trouble shoot the issue to determine if this is simply a hardware limitation, or something else occurring?

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This part fails relatively frequently on the 13" Macbook Pro (Mid 2012), and relatively rarely on other models. If you have the Mid-2012 model MBP, you may want to pursue this before attempting a hard drive replacement, as the cable part is inexpensive and easy to replace. MacBook Pro won't load CD/ DVD! what … - Apple Community Jan 14, 2013 MacBook Pro - Apple

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