It sure seems like a problem with your laptop. MOM does not write to the laptop (workstation) it just sends the information to the server. It should barely use any CPU speed. MOM 5.1 may be quicker as it was programmed in Foxpro 8. Try formatting that laptop.
I believe this was a problem in the past. When I switch between companies I am now asked for a login and password. Fixed after a program update some months back.