Hi michael cw,
As you said that its the latest so can please mention the exact version.
Click help -> About Lightroom
Also as you are saying that graphic card is unchecked that means that Lightroom is not using your graphic card.
How exactly are you trying to export the images.
Is there any external drive that is connected as well.
Please share the screenshot of lightroom and task manager at the time of export.
Try turning off the option to "Show Photo import window" or something like that. It was added to the General tab of the preferences.
Or Revert to 2015.1.1/6.1.1 by following the step over at the Lightroom Queen website.
To all of the Staff that have been posting to this forum lately. Thank you for your participation. BUT lets be CLEAR here. These new versions of LR are just One Big BUG and should be removed ASAP.
Better to have NO updates than ones that cause so many problems and degrade the quality of the program.
Now take that back to Adobe and DO SOMETHING ABOUT IT NOW.
Not using graphics card
exporting a web gallery to my ssd drive(have also tried my standard WD Black platter drives with no success)
Turned of "show Photo Import Window
task manager shows these apps
Adobe app manager ( second level says Lightroom
Adobe Creative Cloud