So I've been having this problems since September 11th about my laptop being awfully slow when it is charging. I've been searching up everything but nothing will work. All my plugged in settings are "High Performance", but it is still slow when I'm charging. I've bought 3 chargers so far (wasted my money), but it doesn't work. When it's unplugged it runs very smoothly and fast.
Laptop: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz ( Lenovo Flex 3)