It more has to do with how unoptimized the game is; the menu system is a kind of necessary evil for PlayStation 3 era memory problems and controller input.

The best solution would be to make it more in line with Guildwars 2 with a 1 click option to “sell junk” and a mouse based UI.

In the UI as a whole there are just way too many clicks to do anything. It is extremely cumbersome. The entire retainer window should just be a single panel with all the day to day stuff as 1 click options (eg “collect venture rewards and resend” instead of view report, collect items, resend).

Moreover, GW2 allows you to sell as many items as you want which sell at a price per item. There is no awkward stack of 13 items..just 13 individual items, each being sold at x price. I have mixed feelings on that since there is some market strategy that is fun to play that is outright removed.