Hi,
thanks for your post, and sorry for the trouble.
Making tables responsive on a web site is awfully hard, given its fixed tabular structure, which can not be broken that easily. That’s why most themes don’t contain code to make a table responsive (even though they label themselves “responsive themes”).
And even for TablePress, it is hard to add support for responsiveness of tables, simply because there’s no “one size fits all” approach for this. Depending on the size, structure, data, etc. users might desire different layouts on small screens.
One common approach that works for regular tables with e.g. numerical data is to flip the table and make it scrollable, which is e.g. possible with the Responsive Tables Extension for TablePress, from https://tablepress.org/extensions/responsive-tables/
Another solution (e.g. in a table with images) is to make it horizontally scrollable, e.g. with https://www.ads-software.com/support/topic/responsive-tables-scroll-only?replies=6#post-5511954
For your table, I would suggest that latter option. Additionally, as you have turned off its individual features anyways, I suggest to uncheck the “Use DataTables” checkbox on the table’s “Edit” screen.
Regards,
Tobias