My mid 2013 MBA has gone through multiple upgrades and now running High Sierra. It has i3 Core and 4GB of ram. I was afraid with each upgrade that it would run

My mid 2013 MBA has gone through multiple upgrades and now running High Sierra. It has i3 Core and 4GB of ram. I was afraid with each upgrade that it would run like crap. I'm pleasantly surprised that it runs HS without any perceivable drop in performance