I propose removing the +1 defense normal unit bonus and reducing 1 armor to javalineers and dragon turtles. This way, lizardmen gets slightly less good on all stages of the game.
EDIT: Oops, I just noticed you made a decision in a patch 2.92a reducing pop growth by 30/turn. That works too.
EDIT: Oops, I just noticed you made a decision in a patch 2.92a reducing pop growth by 30/turn. That works too.