Dell :: Studio XPS 13: Lagging Issues During Charging

every time I plug it in to charge when it reaches critical battery state, all the programs severely lag. Windows take forever to come up, even file menus and the internet is slowed,

whether my Power Plan is on Battery Saver or High Performance or Balanced, this occurs. Initially I feared overheating, so I made small feet for the backside of the laptop to prop it up another inch and that seemed to help the heating part, but it still lags during initial charging.

The only way to get around this, temporarily, is to hibernate or shut it down after plugging it in to charge and returning a half an hour or more later on, then it's fine.