Now we are talking. If I were you, I'd try to look at the bigger picture: do all your pages exhibit this behavior? I bet only few of them do. If ActiveRecord object creation time is your bottleneck, your rhtml on those pages must be very-very thin, because typically rhtml render works waaaay slower than active record.
This tells me that you have pages with very little rhtml in them, but they (somehow) require many DB-mapped objects. Sounds like an anomaly to me. But perhaps this is just a nature of your app, in that case dump the slowest objects and don't use ActiveRecord for them.
Another good suggestion was already mentioned few posts back: when creating your objects, load only those attributes that matter.
Good luck, and hope you'll resolve your performance issues.
This tells me that you have pages with very little rhtml in them, but they (somehow) require many DB-mapped objects. Sounds like an anomaly to me. But perhaps this is just a nature of your app, in that case dump the slowest objects and don't use ActiveRecord for them.
Another good suggestion was already mentioned few posts back: when creating your objects, load only those attributes that matter.
Good luck, and hope you'll resolve your performance issues.