Windows gives you a clear window into what it is doing with your PC's resources. If you ever want to know what is taking up all of your memory or processor power and slowing your machine down:
- Right click on the taskbar and select "Task Manager"
- Click "More Details"
- Click the Memory or Processor to sort Descending.
Once you sort by memory or processor you can see what applications are taking the most resources. Close any applications that you aren't using that are consuming lots of processor or memory to get the best performance out of your machine while video conferencing or when you need high performance.