Re: Straight table full maximized vs straight table partial maximized
Uncheck Size to Data in Layout tab.
Place only this Straight table in a container (Multiple objects in container again causes performance issues). If the data selections result in a chart that is smaller than the max size defined, then the chart only uses the space required to display it. It will not stretch to fill the defined size unless it is in a container.
Change your table having less number of columns & more expressions, just put any dimension in an expression after that you could move the size.
Right click on Row Header of the table & select: FIT Column to Data option.