Do you know if anything is being done to improve tables, percentile
values or expressions in column-width? Display problems, currently I
have to do a lot of calculation to keep content from overrunning
individual cells, or table overrunning if I have a lot of cells.

Just asking if this is something that is high on the list of fixes, or
lower down?

There is something in the works, but I have no idea
when it will be readz.