Religion conversion problem

Hi,
I play as High Elves for nearly 1700 turns. I build every religion buildings but I think that it does little changes. Is there any way to change in game files effectiveness of conversion?

Wait, 1700 turns in one campaign, is that even possible? Respect for your patience, lol!
Religion conversation takes many turns, it's 12 turns for one year, and I'm sure that some settlements have some script to activate rebellions via religion.
Recruit as many Priests as you can!

1700 turns? Lol, I think your world map is pure white already.
White power! Elven supremacist!

I really enjoy this campaign, I want to defeat all factions. Right now i have only Nurglites, Ogres and Tomb Kings to conquer. In this stage campaign is really slow mainly becouse of logistic problems (recruiting elite armies etc).

Is it any way to change conversion speed in game files? How to do it?

I modified for my own game for roads to give minor conversion 2%/4%/6% bonus, like in Third age.
Something like this in export_descr_buildings file.

Spoiler Alert, click show to read: 

}
building hinterland_roads
{
levels roads paved_roads highways
{
roads requires factions { greek, Nord_culture, northern_european, eastern_european, southern_european, mesoamerican, turks, }
{
capability
{
road_level 0
religion_level bonus 2 requires factions { northern_european, Nord_culture, eastern_european, greek, southern_european, mesoamerican, middle_eastern, }
}
material wooden
construction 2
cost 500
settlement_min village
upgrades
{
paved_roads
}
}
paved_roads requires factions { greek, england, russia, southern_european, mongols, mesoamerican, egypt, turks, }
{
capability
{
road_level 1
religion_level bonus 4 requires factions { northern_european, Nord_culture, eastern_european, greek, southern_european, mesoamerican, middle_eastern, }
}
material stone
construction 4
cost 1050
settlement_min city
upgrades
{
highways
}
}
highways requires factions { greek, england, southern_european, egypt, }
{
capability
{
road_level 2
religion_level bonus 6 requires factions { northern_european, Nord_culture, eastern_european, greek, southern_european, mesoamerican, middle_eastern, }
}
material stone
construction 6
cost 1750
settlement_min large_city
upgrades
{
}
}
}
plugins
{
}
}