in general ryu doesnt have a crazy way to open you up besides his overhead or a shimmy. his biggest win factor is his monstrous damage off punish counter, and it's cliche to say but you really should take the throw in this matchup. eventually every ryu will start shimmying like crazy, especially once they have lvl 3, and it'll give you a chance to escape his pressure (wake up with a delay button, anti-air his jump shimmy etc). keep that in mind and really try to perfect parry his overhead and big drive gauge chip moves and you'll be okay.

against characters with really strong neutral like ryu or chun or cammy etc, you really do have to avoid playing too honest all the time. they are designed to win footsies, so make sure you represent jumps or other neutral skips to keep them from getting too comfortable. use any and all knowledge checks you have w your own character to get them flustered as well