Extreme FPS drops are normal in the entrance hall.
This is not so bad, but unfortunately this is in an area that is crucial for the heist, which makes the whole thing unnecessarily difficult.
The heist itself is really fun, but even after 6 years, this known bug is not fixed, so I can unfortunately not recommend the dlc.

Edit: I was able to improve my performance MASSIVELY with the following fix (as far as I know this only works with AMD CPUs):
1. start Payday 2 and a heist of your choice
2. tab out of the game and open the taskmanager
3. go to the tab Detal and search your Payday 2.exe
3. right click on the Payday 2 exe and select "Set affinity"
4. Click on OK
This must be done every time the game is restarted.

The non-recommendation still remains as this does not solve the problem, it is only a workaround.

Extreme FPS drops are normal in the entrance hall. This is not so bad, but unfortunately this is in an area that is crucial for the heist, which makes the whole thing unnecessarily difficult. The heist itself is really fun, but even after 6 years, this known bug is not fixed, so I can unfortunately not recommend the dlc. Edit: I was able to improve my performance MASSIVELY with the following fix (as far as I know this only works with AMD CPUs): 1. start Payday 2 and a heist of your choice 2. tab out of the game and open the taskmanager 3. go to the tab Detal and search your Payday 2.exe 3. right click on the Payday 2 exe and select "Set affinity" 4. Click on OK This must be done every time the game is restarted. The non-recommendation still remains as this does not solve the problem, it is only a workaround.