Other than having a horizontal scrollbar in your straight table you can also do a wrap text which will be probably in the layout tab in the chart properties.
Wrap Header text - Wraps your headers into multiple line or fixes according to the width provided for the column (Dimension name or expression name)
Wrap Cell text - Wraps the cell text or the values in that column
However, I'll also try to have a scrollbar in the straight table if possible. I'll get back to you if I'm able to do so.
Hope this is helpful.
Thanks and Regards,