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gtmead09

macrumors 6502a
Original poster
Sep 22, 2016
713
1,252
Hoping the gurus can give me some help on this one, because it's strange. This happens on multiple sites, but I'll use this as my example:

Steps:
- Run Safari, go to last months keynote (this is a example, not only site)

Problem:
- Play video, system becomes choppy and sluggish
- Mouse skips, delays in system response for actions
- Feels like system is running high utilization

Things I have tried:
- Reset SMC, PRAM
- Happens on Mojave and High Sierra
- System has gone to Apple for repair, they said it's fine
- Has this issues on a fresh install of Mojave with nothing else changed or installed
- With fresh install, plenty of space on the hard drive
- Tried clearing Safari Cache, history, etc
- Same site in Chrome, plays no issues or impacts to system

System
- Macbook Pro 13 in - 2016
- 2 GHz i5
- 8 GB RAM
- 512 GB Hard Drive
 
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