Graphics pages in operator workplace is taking too much time to display.
maybe you have too much "air" in your aspect system data file ?
In the aspect server, start a Command Prompt and execute "afwsysinfo".
Let us know the Blob bytes in AD and File data size.
If you have a big difference between them you can do a "cold start", but only when you know what you are doing....
I would also recommend to do a disk Defragmentation.
With an engineering account, Right Click on the Operator Graphic and Choose "Diagnostics".
Keep the number of Subscribed items low - less than 4K. Use alternative display elements if required.
Eliminate Late Binding
The timing tab will give you an indication of where the delays are occuring.
You didn't mentioned anything regarding RAM,graphics card( Pg2 needs render tier 2), Cpu load in operator station, how about data fetch from controller on subscribe.
Generally for the either faceplate/graphics navigation took little time to get directly from AD then later it's gets copied into cache memory to fetch faster.