90 seconds is a long time to make a shot. However I would not like to see the 90 second shot go by the wayside. I have satellite internet and when suffering through a little interference from a thunderstorm or snow in the winter, I will get a poor response from my server. I have hit the ball many times and waited 20 seconds for my avatar to move. I have also hit reverse view and waited 20 seconds for it to kick in.
My drives are never more than a few seconds from the time my screen pops up and says it your turn. However once again sometimes 15 seconds will roll off the clock before the ball gets launched.
There are players that will drive you nuts waiting for a minute before they hit a drive with no wind to try and compensate for. They are the ones that go on my little list to stay away from in the future, and to be honest there aren't that many of them.
So I guess, what I'm saying is, leave the 90 second clock. If you don't like it, well there are a few things we all don't like about this game but we are still playing and having fun.