Any mod that forces scientific research to go at same rate?

I'm not really a big fan of science victories personally and I'm sick of seeing civs like Assyria launch ahead with 56% tech while everyone else is around 28-30%, and in the last game he just went on a conquest rampage at that point and slaughtered everyone with his advanced army. I attempted a retaliation but not a single civ joined me (him being too powerful) and he wiped me out fair and square.

Even though there's probably arguments for it being realistic, I'd just rather play with all civs having roughly the same speed of research, with the exception of Research Agreements and perhaps Great Scientists. So yeah, any mods for this?

theres a tech diffusion mod, if its not in the steam workshop search for it in the modcomps subforum here.

ps: havent ever seen assyria performing that good

Thanks for the pointer