NBA 2K14 plays perfectly with classic teams, but lags with current

I have NBA 2K14 on PC, & the game is close to perfect when I'm playing two classic teams, but when I play two current teams, the game lags, & isn't up to par. What's the deal, this seems kind of weird to me, & I've re-installed my disc, same results. Flawless with ANY classic team, but struggles with lagging on current teams. Any theories on the possibility of this, & thanks for taking time to read post.

It's the jersey physics.
try my stiff jerseys or bliss's final version of tight jerseys for 2k14

Link to my thread. This should improve gameplay for you
viewtopic.php?f=153&t=95865