Start getting drunk after the first sips of beer?

It’s not like I’m falling off my feet or anything, but I’m starting to feel a little “kick in the head” after the first sips. So my dose before I start to struggle with sleep (and coordination) this is about 2-2,5 liters of average beer in 1-2 hours. And no, I’m not even Asian, and there are alcoholics in my family, maybe that’s the reason lol.

Am I so exceptional or is it common?