PUBLIC SERVICE ANNOUNCEMENT: If you buy the $13 pack of all the DLC's on STEAM, be aware that it includes 2 "pay to win" upgrades that pushes your character to level 8 of 10 in Face, Police, and Triad. It's bogus.
Set the game to not auto update. If you bought the DLC pack but didn't install, do not install the Top Dog Silver Pack and Top Dog Gold Pack. If you already did install the DLC pack, then go to the local files and delete:
1E6323E1 - which is the Top Dog Gold Pack
576E446C - which is the Top Dog Silver Pack
Not sure why they ever came out with those two specific packs that do nothing but kill the entire leveling structure of the game by basically nearly maxing you out right away.
(might be cool to add for a second playthrough or whatever though.)