yes, the beams are misaligned/unfocussed...
There is no software adjustment, it's a manual procedure under life threatening conditions.
I only remember it vaguely because it's been such a long time, but iirc a proper adjustment of high quality tubes was practically impossible without dedicated gear.
We (in service department) always returned such tubes to the manufacturer.
You may have some experience in this domain, as you already took the risk of putting a literal hand grenade on the table...
Please provide some information about your personal background.