画面と画面の切り替わり｡
いちばんおとなしいのに､処理上はいろんな読み込みが行われて実は忙しいところ｡
だけど､なるべく詰めていきましょう!
It may not seem like much is happening during screen transitions, but there's a lot of loading taking place behind the scenes.
Still, you should try to keep them as short as possible!
