Webflow designer extremely slow using Safari browser

Editing our website www.cronologic.de is currently impossible, as the performance of the tool is getting worse throughout the day.

While in the morning hours from 7:00 to 9:00 CEST everything runs smoothly, in the time after that the designer is virtually unusable, because the response time of the input mask is getting longer and longer. At the same time, the CPU utilization of my computer is sometimes over 160% (see attachment). On the other hand, when I do image editing or video editing with Adobe Creative Cloud, my computer is very fast, so I assume that the cause of the problem is the Webflow servers.

Can anyone share my experience or does anyone have a suggestion for a solution?

Here is my site Read-Only: LINK

You should be using chrome, it doesn’t work very well with safari