that’s not so slow when paused, but when simulation started framerate dropped to one digit.

Anybody else who gets same issue?

Lowering graphic option does not help either. At the beginning of the game, everything runs smoothly.

• Lines menu no longer drops 1/2 the fps
• Following a vehicle no longer drops 20fps
• Rotating the camera is much smoother
• Zooming in and out is much smoother
• Viewing the horizon has less of an impact.

The game still drops to between 15 – 25 in various areas / views but the above changes have made a massive difference for me making it much more playable.. its not perfect but It used to become unplayable by 1950 on a small map for me, its not hit this stage yet on a medium map..

• When the vehicle needs replacing notice comes up, due to the PIP it lags
• When buying 8 new trucks, it lags (again due to PIP I’m guessing) But I pause at this point anyway.

*reason for new game was that some of the mods I used where causing a crash after the patch.. so couldn’t test existing saves 🙁

I feel lines menu and following vehicle slowdown is much smoother than before, but still slow when map has large population (not so different even changed graphic option to lowest, or move camera to less populated area)

I think it would be beneficial for the dev’s to make changes similar to below:

• When buying a vehicle, don’t open the vehicle window itself.. you have the depot display for that.
  I only have to spam the close button for each, since I want to keep some windows open DEL is not an option.
• When notifying that a vehicle needs replacing, either limit the window to 1.. or don’t show a PIP.

I took a series of screenshots showing the effect these unavoidable PIP windows can have on performance.
The game was paused in 1978 and I let the FPS settle before taking the screenshots.
Its fairly typical of what its like in my game.

41FPS – Looking over a city:  http://i.imgur.com/jxSDcnU.jpg

30 FPS – With a single vehicle window open:  http://i.imgur.com/l3Bg1lk.jpg
25 FPS – With two vehicle windows open:   http://i.imgur.com/xGVnyKI.jpg
21 FPS – With three vehicle windows open:  http://i.imgur.com/cDZ79eR.jpg
7 FPS  – With 15 vehicle windows open: http://i.imgur.com/tSvZ1r3.jpg

30 FPS – With 15 vehicle windows open, but on the details tab (no PIP):   http://i.imgur.com/ZLhsgAL.jpg

I get a drop from 60fps to 40fps in such case. That is appaling.

The simulation part of the game does not seem to all that slow, to be honest, its the graphics part that pulls it down.

The PIP window would show the currently selected vehicle or vehicle from the current window you have active.
The vehicle windows could then be re-designed slightly to show some of the important buttons on the first tab, like send to depot.

Because if there’s less than 1000 pops from largest city, performance is not bad. and when population gets bigger and bigger, performance is worse and worse. Pops over 2000? almost skipping. lowering graphic option isn’t different from before and move camera to less populated area (edge of screen where city has only less than 1000 pops) almost same performance issue than before.  when simulation is paused, there’s only few performance issue. everything is flawless and very fresh.

I have played Cities in motion 2 with much more population (over 100k) but there’s no such issue.

There’s still some graphical lags but I think it’s from simulation (perhaps pathfinding)

Move the camera so you are looking away from the map and watch the performance..

Aside from the monthly lag / auto save, it should be high FPS and consistent, well VSync is on by default, so 60fps for me.  At the end of the month, doing this, I get -8fps drop.  Then around the 12th of each month a further 8fps drop, both lasting about two seconds.

The fact that it runs at very high frame rate when looking away from anything graphical tells me its more about the rendering than the simulation / path finding, I might be wrong of course, but if it was the simulation, surely it wouldn’t matter where my camera was pointing and I would notice similar performance hits.
When playing, its not the occasional drop I get, its a constant fluctuation of low / high.

Looking over a city, with 800 population, I can hit lows of 14 fps and highs of 43 fps (with no vehicle or other windows open)..

Anyway, I have set geometry to low (+15fps versus high) and ambient occlusion off (+8fps versus on) which has helped quite a bit to be fair.

can you help me

url ?