Dude.
I have a 1050Ti, i7, SSD and had 8g. Had to play in Low and was annoyingly laggy. Bought 8gb more, now i have 16gb. Playing at very high with no issues, except in Sieges. So i now play in High. Smooth af, some spikes in sieges.
TL, DR to everyone: Buy more ram, it is the only way. Since Siege problems r being reported by everyone, i think it is the point that can be solved by patches. However 8gb it s not enough to run the game smoothly unfortunatly.