Hi,
thanks for your question, and sorry for the trouble.
Yeah, the experience of editing large tables is bad at the moment, I agree ?? The reason simply is that the web browsers have problems managing the vast number of input fields in large tables.
But there are good news: I’m already working on a redesigned “Edit” screen that will work much better and faster with large tables. Unfortunately, as this is not trivial, and as I’m very busy at the moment, this will still take some time.
In the mean time, you could try a different browser (Internet Explorer has – for some users and surprisingly – been the fastest here).
The only other option is to manage and maintain the table offline, e.g. in Excel, and after modifying saving it to a CSV file. Then, import that CSV file into TablePress, choosing to replace the existing version.
Regards,
Tobias