Stream Labs OBS FPS Issue

[mikelovebx]

I'm trying to get into streaming, I built a PC that I was sure could handle the task. (8700k, 32GB Gskill ram, GTX1070).

I easily get over 100 fps gaming at 1440p on Fortnite. As soon as I open streamlabs OBS (Not streaming, just opening the app) My Fps tanks to 60 in fullscreen. I do realize it supports 60 frames but even at 60 the game is choppy and looks like its at 30 fps. When I go into windowed fullscreen I get back up to 140 fps but the game is still super choppy, like its at 30 fps even though its telling me I'm getting the full 140 fps.

Would anyone know whats causing this?

My upload is always at or over 800, Nvenc is enabled, Bitrate is between 4000, Native res at 1440 while output res is at 1080p.

 

[The Paladin]

change bitrate to 2500, also what is your upload speed on your ISP.

 

[mikelovebx]

change bitrate to 2500, also what is your upload speed on your ISP.

My upload is always at or over 800 on speedtest

 

[TerryLaze]

As soon as I open streamlabs OBS (Not streaming, just opening the app)

Unless you change it the preview will work as a normal stream meaning it will do all the work it would do for a stream.
Fortnite is just peculiar like that it can't handle a second app using up CPU cycles,try it with a different game even a more demanding one and it should work much better.
Fortnite streaming=GPU streaming only.

 

[mikelovebx]

As soon as I open streamlabs OBS (Not streaming, just opening the app)

Unless you change it the preview will work as a normal stream meaning it will do all the work it would do for a stream.
Fortnite is just peculiar like that it can't handle a second app using up CPU cycles,try it with a different game even a more demanding one and it should work much better.
Fortnite streaming=GPU streaming only.

So not showing a preview should clear this up??

 

[TerryLaze]

So not showing a preview should clear this up??

But you would have the same problem while streaming.
It's the game you can only stream it smoothly when using the GPU.

 

[mikelovebx]

So not showing a preview should clear this up??

But you would have the same problem while streaming.
It's the game you can only stream it smoothly when using the GPU.

How would I go about doing that?

 

[TerryLaze]

How would I go about doing that?

In the encoding tab of OBS choose either qsv to use intel's iGPU or nvenc to use your nvidia card.

 

[mikelovebx]

How would I go about doing that?

In the encoding tab of OBS choose either qsv to use intel's iGPU or nvenc to use your nvidia card.

It was set to Nvenc by default. I never took it off of that.