Been a GW2 player for 6 years now, i have seen many things improve in this game, loads of hard work on many areas(not discussing wvw or pvp per se) BUT for competitive modes, the one glaring thing, which i still after so many years cant get past by are.... the lags. You can do whatever/how much so ever optimisations as you want, but most of the top tier games with any sort of pvp mode built in has a much much smoother game experience than this. Put some effort into network optimisations Anet, it doesnt matter whether you play EU or NA it sucks if you don't live in either of those two regions. While i play as a non US/EU player on so many other competitive games where most of my time is spent on the fight itself instead of, "oh kitten, my skills are not hitting, kitten i must die now!" game mode, which is fairly frequent on GW2.
end of rant