This morning "bdservicehost (Bitdefender Virus Shield") started to use too much cpu ~30% permanently for 4 hours and until now.
for me too..
The only solution I found is to reboot my PC and after 24 hours the problem did not reappear.
I don't know if it can be useful, however even the Free version of Bitdefender uses a little too much RAM at rest.
In my opinion it should work to reduce RAM usage.
Rich Text Editor.
To edit a paragraph's style, hit tab to get to the paragraph menu. From there you will be able to pick one style. Nothing defaults to paragraph.
An inline formatting menu will show up when you select text. Hit tab to get into that menu.
Some elements, such as rich link embeds, images, loading indicators, and error messages may get inserted into the editor. You may navigate to these using the arrow keys inside of the editor and delete them with the delete or backspace key.