Lots of lag in The Sims 3 colection repack Mr DJ

The torrent is https://thepiratebay.org/torrent/12084693/The_Sims_3_-_Complete_Collection_All_sp_ep_2014_repack_Mr_DJ

And i have the strange problem that i have TONS of lag, and i shouldnt have. I have the specs to play games like witcher 3, dark souls 3, Batman Arkham night at med-high, but for someway i have lag in The sims 3. I have 8 gb of ram, btw.

PS. Sorry for any gramatical error, im not a native english speaker!