Ever since I downloaded Mac OS Mojave my computer has been very laggy and just seems to be working at 50%. I have had to restart it twice within the past week, which I had never had to do before, and the last time I did it it stopped halfway through turning back on so I had to turn it off and back on again. I can't even watch a youtube video because it's so slow. I know it's not my wifi because I reset it on Wednesday and my grandmother is watching DirectvNow at the same time with no issues. I'm just wondering if anyone else has the same issues I'm having. I tried to look through the forums but couldn't find anything.