Earily wonders obsolete before built

I started this run a hour or 2 after map started. I am seeing that technology grows at a very fast rate with a few tweeks and a few buildings. Seems to outgrow wonders before some wonders are built. I do not have a good idea to settle this but maybe give a wonder 12-24 hours of functions or half (or less?) as effective after built (for a predetermined amount of time?) if the technology that makes it obsolete has already been discovered. Only suggestion I could think short of trying to math it out differently.