FPS stuck at ~25. GPU not used to 100%

[Sailer1632]

So I just build a brand new pc and tried out my favorite game: Cities Skylines.
Everything went normal until I was in my savegame (Population about 150.000). I had only ~25 fps even though my pc is quite good.. The GPU was only at 40% usage as well (ingame speed settings didn't change anything). Here are my stats:

i5 6600 @3.4GHz
16GB DDR4 @ 2133MHz
and a GTX 1060

To test the limits I got a mod to get a higher resolution rendered. And the really weird thing is, I had ~25 fps again, even though my GPU had to calculate the triple amount of pixles it had before. Is it possible my cpu is bottlnecking the game? (Which I really doubt since it's actually a good quad core cpu)
Here are two screenshots to show my issue (Notice the fps counter and the slider in the top left box):

http://steamcommunity.com/sharedfiles/filedetails/?id=775509202
http://steamcommunity.com/sharedfiles/filedetails/?id=775509135

Any kind of help is appreciated!

[SonOfNitrous]

same here with gtx780 and 4770k

[Sailer1632]

Originally posted by SonOfNitrous:

same here with gtx780 and 4770k

I've googled this a couple of times now, and there seems to be a problem with the game itself. Nothing that we can change :/

[grapplehoeker]

The Unity engine is the bottleneck. Tweak as much as you like, but focus on resolution graphical quality and forget about fps which really isn't critical in a city builder.

[SonOfNitrous]

Originally posted by grapplehoeker:

The Unity engine is the bottleneck. Tweak as much as you like, but focus on resolution graphical quality and forget about fps which really isn't critical in a city builder.

it's about comfort)
Some much weaker systems can run it 60 fps stable.

[FroschGames]

I think it could be your cpu. I have a city with 260k, and I get around 20-25 fps at the slowest speed. My CPU gets used up to 95%, according to the task manager. And as soon as I pause the game, my fps go up to up to 35fps, depending on how detailed the area is I'm looking at.

My specs are the following:
Intel Xeon E3 1231v3 4x3,4 GHz (w/ hyperthreading)
8GB of RAM
R9 390 Nitro (Im going to throw this crap out for a 1070, I'll report how my city performs if you want)

[KingyBear]

Also get about 20-25 FPS at 4k and 81 tiles. Its just how it is for basically every one

i7 3770k 4.8GHz
24GB DDR3
390X 8GB

[Sailer1632]

Sadface. Thanks for the help tho. Much appreciated.

[MarkJohnson]

nvidia has worse issues. Try uninstalling geforce experience and see if it helps.

It seems to help a lot of users. Just don't expect miracles as it will still be low, but maybe more playable for you.

Try ddu in safe mode to do a complete uninstall of the driver, then install the lkatest driver in custom mode and make sure gefore experience is unchecked. I jusu uncheck everything but driver and physics. I don't need 3d nor audio as I use external speakers.

DDU utility from 3DGuru: with instructions.
http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

Latest nVidia GeForce driver from nvidia website:
http://www.nvidia.com/Download/index.aspx?lang=en-us