It sounds like when they were working on the pump, they probably made some changes to the linkages that may have altered the kickdown cable adjustment and/or the relationship of the spool to the lever on the IP. Not a big deal, you can play with it and get it back to where you want it, if you wish. Or if you aren't bothered by the new behavior you can probably also live with it, as long as it's nothing crazy (no harsh shifts etc).
The linkages do have a lot of adjustment points so the easiest way to get them right is to just use the adjustment procedure in the Volvo factory manual ("greenbook"). Otherwise it can take a lot of fiddling and trial and error to get a setting you like.
We could send you some pictures of the manual pages that show how to do this if you want to give it a try. Otherwise you could try loosening the kickdown cable a little bit if you want (change the position of the nuts so that the sheath moves closer to the end of the cable). It sounds like from what you are saying the shifting is a little bit later than you are used to, which means that the kickdown cable has in effect been tightened up as a result of the work that was done.
However, be careful not to loosen that cable too much. You would rather have it too tight than too loose. If it's too loose then shifts will be too early AND too soft under acceleration, which can cause damage to the trans. Make adjustments in small increments if you make any at all, don't overdo it.
