Patch 2.1 (Age of Empires II)

Performance Improvements Visual fixes: Multiplayer fixes including:
 * Frame rate & performance improvements that increase frame rates up to 50% on low end machines and up to 500% on the high end systems previously experiencing frame rate issues.
 * Windows DPI scaling no longer zooms the in-game perspective
 * Default scroll speed increased
 * Quitting a multiplayer game triggers a resignation instead appearing as a ‘drop’
 * Private lobbies stay private
 * Quick match no longer crashes
 * Long Steam usernames no longer cause crash
 * Hotkeys for multiplayer are correctly saved
 * Lobby now enforces that you only play multiplayer with the same build version
 * Visual indications of players in your lobby and in game who have low frame rate
 * Better networking verification prior to entering game (prevents getting stuck on the voting screen)
 * Performance warning if you have high ping to one other player who isn't host or if your data is being relayed
 * Multiplayer quick match speed defaults to normal
 * Multiplayer Lobby doesn't lock to a region for displaying games and allows for “far” region list inclusion. (Likely will not show games where players have exceedingly high pings to hosts that would result in multi-second delays)
 * Achievements fix: Single player unlocks achievements properly

source

https://steamcommunity.com/app/221380/discussions/1/828936719158701487/