davke Posted July 20, 2018 Share Posted July 20, 2018 Heyhave just installed High Sierra 10.13.5 on my dell optiplex 990 problem : keeps hanging (lag) for 1sec in safari or between programs also when playing video on youtube little bit of glitch + hang for 1 sec. or 2 sec System: Dell optiplex 990 - Core I7 Vpro 2600 3.4 GHz 8GB RAM graphics card : ASUS Radeon XR 560 AMD 2GB HDD : 3.5 SATA Grtz, davke Link to comment Share on other sites More sharing options...
davke Posted July 23, 2018 Author Share Posted July 23, 2018 Someone an idea what the problem can be? Link to comment Share on other sites More sharing options...
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