The user reports that Heidi has become noticeably slower since the recent web interface changes approximately one month ago. They are using Safari on a MacBook and experience delays when:

There are no error messages, but the overall web experience is significantly slower than before. The user also specifically mentioned that they preferred the previous Heidi layout/format and felt it performed better for their workflow.

The user requested to improve the loading speed and responsiveness of the current Heidi web experience, particularly on Safari/Mac, and consider their feedback that the previous interface felt faster and easier to use.