Hello, First off i'd like to say i've been using Bitdefender no problem for almost 3 years now. I recently Upgraded my CPU from an Older Intel® Xeon® Processor E3-1230v3 To an Intel® Core™ i5-9400F Which has higher per core cpu ratings and higher CPU scores. so I'm not sure why this is an issue. I've even done a fresh install of windows 10 thinking upgrading my Motherboard and CPU and RAM might of caused an issue but im still getting 30-50% cpu usage and it makes playing Games almost impossible. I've even tried turning off the Virus Shield and its still at 30-50% usage in task manager.
I will attach a screenshot of my Task manager while i was playing a Game (Overwatch) i never had issues before and the i5-9400f is much faster than my old cpu...