increasing the density of smoke bombs

I am writing with a proposal to increase the density of smoke bombs. When the smoke screen clears, it is slightly visible through the smoke when one or more people pass in different directions. I would like the smoke screen to be dense, it was difficult to see it, and it was possible to hide behind the same curtain. On the one hand, we will sacrifice FPS, but on the other hand, we will complicate the game in terms of the fact that players can hide in it and install/clear c4.