Data Table slow/blocking when column with long documents present

[PrimozGodec]

What's wrong?

The table is slowly loading data, blocking and is not responsive when the table with long texts in one of the columns at the input.

How can we reproduce the problem?

Load http://file.biolab.si/text-semantics/data/zakoni-o-registrih/ with the Import Documents and connect to the Data Table, open try to scroll and try to close the window then.

What's your environment?

• Operating system: macOS (probably the same problem also elsewhere)
• Orange version: any, master, 3.31
• How you installed Orange: any way, pip, installer