Clicking onto editable form fields with mouse creates rendering issues (entire form flashes) that don't not appear when simply tabbing through. I this a simple change within acrobat preferences?

I'm using Acrobat DC standard on Windows 7 Pro. I have no issues tabbing through editable form fields but when I use the mouse to navigate the fields the form flashes and seems to have trouble rendering. Is this a simple setting issue within acrobat or possibly something more involved with my machine or the form itself?

[Asking in the correct forum helps... Moved from non-technical Forum Lounge to an Acrobat forum... Mod]