Hi,

I previously used Draftsight 2018 and when attaching a PDF I could scroll up and down ( resizing drawing ) and the pdf underlay screen generation was updated immediatly. 

I updated to 2019 and when I now attach a PDF and when I see the pdf and want to enlarge the screen with the scroll gesture, it takes about 5 - 6 seconds before the pdf underlay is visible again. 
So the "refreshing""of the screen is terribly slow.

Does anyone has an idea if this is just a setting or a problem related to the 2019 version itself?

The hardware configuration is not the problem since i didn't have the problem with Draftsight 2018.

Hopefully someone has an answer for me :-)