The game lags alot while transferring items at once, causing major issues.
So instead of all-at-once, why not put it like Terraria’s Mannequin way?
In Terraria’s way, the mannequin gets updated with less datas to load. Simply by transferring items one-by-one.
instead of all-in. This may take longer but it is better than losing all the items you had worn before.
this would be Display Case but more storage.