Anyone having issues with latest Mojave beta version?

Ever since latest update of Mojave developer beta, ALL video on my Mac runs super-super fast. A one minute video takes less than a second. This is in Finder, QTPlayer, YT, even inside FCPX. Wow, seriously broken. Anyone else seeing it, or hearing anything about this?

I'm sure an update to fix it will be released really soon, but, how did such a huge bug slip out?

… first you purchase a beast of an iMacPro, now you complain it's too fast! :silly:

SCNR! … just kiddin'!

I don't participate in the public beta, so no useful comment from me…–