I get "not responding" message in graphics workstation

Hi, I have the latest updated PP 2017. When I switch workstations from "Editing" to "Graphics" and try to change or create a title, the software becomes sluggish and I get the dreaded "Not Responding" message. Also becomes sluggish when I try to add or change effects in Effects Panel. It doesn't crash and eventually recovers slowly, but can't make changes. Only really works well in Editing mode. Updated my Video card driver, but that didn't seen to work. Working on a laptop with Windows 10, Intel 7 Gen core, NVidia GEForce 1060 video card, 16gigs RAM. 1920x1080 project (60 min length). On a deadline so need to get this working smoothly again. Any suggestions greatly appreciated!