Yeah looks like that mod was only ever made for 1.12 so unless the mod author can be convinced to make a 1.7.10 version, there's not much to be done.
Though I think you should look into why 1.12 lags on you, it shouldn't be all that much different from 1.7.10. How much memory are you giving the game when running mods? What other mods are you running? What exactly do you mean by lags? Is the FPS low or does the game itself run slow while FPS is fine?
naw I already tried all the tips and tricks to reduce lag and it's something that has changed minecraft I think: I tried changing the prefix of my profile (how much data to assign, codes to change data dump etc...) , experimented with video settings, setting java data as high priority... nothing