Very long research time

I have a big problem with the research system. I started a game in the renaissance era and every reserch need a lot of points, for example the gunpowder needs ~250000, but if I start a game in the ancient era it is only 4480. I think it is a bug.
I'd like to know there is any solution for this problem.
My game mod version: 985

Yes, don't start from renaissance. Mod is not designed (yet) for advanced starts. Also turn off realistic timescale if it's on, but it probably won't help much.