I had this problem with the new Photoshop CC 2018 but I have no Lavasoft software to de-install.
A flickering cursor and unable to open the menu's
I found a solution to this problem though. It is caused by two extensions. (com.adobe.Butler.backend and com.adobe.DesignLibraryPanel.html)
For anybody who came here for flickering cursor issues with the new Photoshop I put a short tutorial on YouTube on how to solve it by removing the two extensions: Photoshop CC 2018 Flickering cursor/menus not opening Problem Fix - YouTube
I hope it helps you too. Success!!