Hmmm, that religious victory stuff looks wrong. It's possible I broke it in the latest update. If so it will be fixed in the next one, as Orion Veteran has completely rewritten the code for it, and we will be thouroughly testing it once he gives us on the final code to work with for updating RevDCM. All RevDCM updates make it into LoR relatively quickly (and in terms of the SVN, often times the updates go into LoR first), as I work on both projects.
I've noticed the opposite about LoR and BtS and AI teching. In general LoR is muc harder, I can beat Immortal in BtS, and can barely scrape by on Emperor in LoR. However if you enable the "Start as Minors" option on game start I have noticed the AI is significantly hindered in the beginning. That game option slows down the whole game considerably.
There are 2 things RevDCM will be implementing in order to improve AI teching. First jdog is updating the AI logic to better handle Start as Minors, so it will do what the human does and try to get out of far off useless wars when it comes out of minor status as soon as possible, and also make it less reluctant to end wars durring this early stage. This should help alot. Second I plan to add an AITechModifier tag to EraInfos which will allow setting a tech modifier by era applied to the AI; as I find in games in general the Human starts to pull ahead drastically in the Industrial era, and I'd like to increase the AI bonuses targeted at specific eras to adress this.
As far as modifiying the Barbarian stuff, yes it's all changeable. Go into the Config folder in LoR's assets. Look in the Revolutions.xml file, and you'll see all the tags BUG loads up to define the atributes of various Revolutions mod components. Look in the BarbarianCiv section, the tags should be relatively to decifer their meaning by name; just mess around with these an you should be able to find settings that do what you want. As far as making more wandering barbs, nothing is different from regular old BtS, barb spawning is in the SDK, and we haven't messed with it. I suppose turning on Raging barbs is the best option.