I used the Frame Rate Limiter "Disable" option in the drop-down menu. But I also didn't notice a real change. I guess it's just the way the game runs. I'd rather not have to mess with my CPU's clock speed just to get one game to run properly.

One thing i noticed that no one else has mentioned here (maybe it's only happening to me) is that the sound quality is arse. The games just sounds... broken, like a really low quality audio file.

Does this help?
http://pcgamingwiki.com/wiki/Saints_Row_2#In-game_sound_is_in_mono_or_only_coming_out_one_speaker

Capping the framrate reminds me of the physics engine in Skyrim :D
If you didn't do it, you could be attacked by furniture and all kind of stuff on entering a room.

That's not what's happening. The sound is low quality, not mono.

In that case, see this thread:
http://www.gog.com/forum/saints_row_series/is_the_audio_still_awful

Looks like the poor quality audio may just be how it is, but at least there is a mod for higher quality radio stations.

I just installed the game on my i7-4790k with a GTX970 on it and 16GB of RAM. The gameplay was awful.

Whoever this seems to be GOG's fault. They tried to fix a problem Win7 and less users have with the timing, and screwed it up limiting it to 30fps (I don't know about you, but it was COMPLETELY unplayable for me). I went into this folder:

C:\ProgramData\GOG.com\Galaxy\support\1430740458\1430740458\add\NVI\

Got into nvidia inspector, the advances options, Saints Row 2 profile, and disabled the FPS limiter. Now it's running "okay". Could be better, thought.

I keep posting this everywhere, so I will here too.

I'm minimaul, and I am the current maintainer of SR2 Powertools. I've examined the GOG release and it's the exact same EXE as was used on Steam - it just doesn't have the Steam DRM wrapper on it.

It has exactly the same speed bugs and all the same other issues.

All they've done to make it "better" is to add a 30fps lock using NVIDIA tools - as I have an AMD card you can imagine how well that works.

Hey guys, do you know any easy way to look my framerate while playing?

I don't want to install FRAPS or anything like that, something portable.

I think I got it running pretty smoothly, 30-60 I would say, at 1920x1200. I want to check and report back.

The Steam release always worked OK for some people.

I will keep saying it though. This is exactly the same program as was released on Steam. It has exactly the same bugs and issues.

If you suffered from slowdown/speedup on the steam version, you will have the same issues with the GOG version.

The fact they're playing on Windows 8 is important.

For whatever reason, I remember reading Saints Row 2 runs much, much better on 8 then 7. Some OS feature fixed the performance.

On Windows 10 it seems like the nvidia inspector fix doesn't work. I can't get rid of the framecap. :(
I removed the cap in the nvidia inspector, and still got 30fps, no matter what. Lowering settings and/or resolution doesn't change a thing: still (surprisingly) rocksolid 30FPS. No increase, but no big framedrops either. Very weird.

(Specs: i7, GTX 770, 16GB Ram)

Is there any replays/official statements about game still running bad? It is still, sadly, doing so for me - it should work at least stable, but when driving it drops below those said '30 FPS'. A bit of shame, really.

Not that I know of. There's plenty of user feedback, just like here in the forums, but I haven't seen any official statements.
Yeah, it's quite sad... especially since CDProjectRed made the pc-port back in the day. A bit ironic isn't it?. :D

Yeah, a bit of shame... But I can somehow manage - maybe there will be some fix for SR2.
But, on the other hand, SR3 works better than ever! And on higher graphics option, nontheless. xD