What do you mean by "every time"?
With every crosswalk game. It would be better if only for one game that browser is downloaded and then works with all crosswalk apps, no need to be packed in every app...
Was developing a native camera app last night with Phonegap + Intel XDK for Android without Crosswalk and the apk is under 400kb
Without crosswalk the performance is too bad for a game. Camera app could be OK, but it's not good for games (not enough fps, slow etc.) as I know.