So I have been experiencing a long time or delay when I click on preview mode. It takes like 30 seconds to open preview mode which is really irritating and disturbing my workflow heavily. As a designer, I tend to click preview mode hundreds of times daily. Re-installing didn't fix it.
It happens in all kinds of documents either basic or complex. I think it has nothing no to with complexity. It doesn't happen every time I click on preview but when it happens, it doesn't stop. So I have to close XD and restart my PC and sometimes this doesn't work, too.
Apologize for being late to this discussion. It looks like your computer has what it requires to run Adobe XD smoothly. I suggest getting in touch with our tech support team using this link https://adobe.ly/2WYE62m for further investigation. Please share your observations here after your issue has been resolved for the benefit of other users. Let me know if you need mor ein fo or assistance.