I also experienced increases load on my laptop with an external monitor in addition to the built-in screen. The load is low initially, then increases such that the fan turns on. Disconnecting the extra monitor reduced the load 30s after unplugging for me.
I also experienced increases load on my laptop with an external monitor in addition to the built-in screen. The load is low initially, then increases such that the fan turns on. Disconnecting the extra monitor reduced the load 30s after unplugging for me.