Is there a stop block on the beam? That's a short stroke for such a big cylinder - unless there is an internal relief???
The slow stroke on return is probably leakby in the spool, pressure going to the return along with the cylinder fluid, or the line is connected to a smaller port
The slow stroke on return is probably leakby in the spool, pressure going to the return along with the cylinder fluid, or the line is connected to a smaller port