Hi,
thanks for your post, and sorry for the trouble.
Yeah, I know what you mean, and I have experienced it myself. Unfortunately, I haven’t found a good solution yet, but I hope to be able to make this better when I rewrite the “Edit” screen in the future.
The problem usually is that the web browser has problems handling the large number of input fields. Some users have achieved a faster performance when using Internet Explorer here (yes, that’s surprising), which presumably has a better management of those input fields.
Another workaround would be to edit the table externally, e.g. in Excel, and then re-importing it from a CSV file, choosing to replace the existing table.
Regards,
Tobias