Which version of Acrobat?
Acrobat pro 10.1.1
Also have tried it in reader 11
Update I tried running the form in Foxit viewer from my usb stick and it ran with out any slow down. So its not the calculates its something with acrobat.
So after some tinkering around we have found the issue.
The issue is with the Video driver for the onboard Intel Video card(Intel® HD Graphics 2000).
Also is an issue on my personal laptop with the Intel Video card(Intel® HD Graphics 3000).
As soon as we updated the video driver to the newest one 18.104.22.16832 all calculates would create huge lag, tabbing from one field to another and in some cases even typing of letters was lagged.
The more calculates the worse it got. So our IT downgraded our video drive to 22.214.171.12412 and the lag is gone. O zip none.
I don’t know if this is something on Adobe’s side or Intel’s side but Acrobat and this video driver don't seem to mix.
Glad this is working for us and hopping it can be address because people without the IT support will bash there heads on a wall if they had to fill out a form with this lag.