The loading time is still fast, however the interaction time has increased to how it was prior yesterday updates (4s). Also the PageSpeed scores have been as they where before yesterday updates. According to gtMetrix my site weights now 1.91 MB, and with yesterday update it was 793Kb, I havent changed the landing page, neither implemented new apps etc.
So I believe that something has changed within the inside of wix, during yesterday nnight or today. Not a big issue, but yesterday it was insanely fast.