Question / Help OBS causing FPS drop to my game when combined with AA when open.

[Deleted member 165664]

It's been an ongoing issue that I have been trying to deal with but have come up empty.

The game is PSOBB which I play on a private server; it's an old game so I like to use Nvidia Inspector to increase AA (specifically MSAA+SGSSAA) to smooth it out. The game can run perfectly 30fps the whole time (yes 30 since it is an old game after all) while using 8x MSAA + SGSAA no issue. However, when I bring OBS up the game instantly drops to 13-15 fps (just being open, not even recording + I do not stream because my internet is not amazing). If I turn AA off OBS causes no slowdown whatsoever or if I have OBS closed with high AA it causes no slowdown. Only when a tiny amount of AA in on + OBS are open. Trying to work out why this is doing this because my PC is more than capable enough to handle these together.

I will look into different software if I have to (like Shadowplay) but I don't understand why I should have to. I enjoy OBS and all its many functionalities. What can I do to resolve this?

Log: https://obsproject.com/logs/KnHUrpWb3rypr8fN

Spoiler: OBS settings

Spoiler: Current NVI Settings

Spoiler: PC SPECS

Processor: AMD Ryzen 7 1700x

• (8-Core/16-Threads, 3.8GHz)

Motherboard: Asus Crosshair VI Hero X370 mobo.

• https://www.asus.com/uk/Motherboards/ROG-CROSSHAIR-VI-HERO/
• (Aura Sync RGB LEDs, DDR4 3200MHz, M.2, USB3.1 front-panel connector and type A/C, ROG Water Cooling Zone, AM3/AM4 compatible coolers and LN2 pots, Sonic Studio III and Sonic Radar III)

Networking: See Motherboard
RAM: 4x 8gb Corsair Vengeance DDR4 [2666mhz]

• (CMK8GX4M1A2666C16 LPX C16 XMP 2.0)

Internal Storage: 5750GB

• 1TB SATA 11 HDD - General Storage
• 4TB Seagate BarraCuda HDD - Rom Storage
• 250GB Samsung 850 EVO 2.5 Inch SSD - Windows
• 500GB Samsung 850 EVO 2.5 Inch SSD - Gaming

External Storage: 320GB

• 320GB Sonnics 2.5 Inch Pocket HD, USB powered.

CD/DVD Drive: 2x Drive-

• Asus DRW-24D5MT DVD super multi (CD+/-RW, DVD+/-RW, DVD DL, 4-24X, 145ms DVD)
• LG BD BH16NSFF.AUAR10B (3D compatible, BD/CD/DVD Supported/-RW, BD-XL (QL and TL))

Graphics: PNY GeoForce GTX 970 4GB (GFP70GTX4GEPB)

• https://www.geforce.co.uk/hardware/desktop-gpus/geforce-gtx-970/specifications

Case: NZXT Phanton410 orange stripe case

• https://www.nzxt.com/products/phantom-410-white

Sound:
Power Supply: 750w Gold standard EVGA PSU

• https://www.evga.com/products/Specs/PSU.aspx?pn=eac89383-65ea-4fd4-925e-fc6d7480dcb7

Cooling System: AirFlow

• 2xFan CPU cooling, 1x Intake/ 1x Exhaust: Cooler Master Hyper 212 LED (AM3).
• 8xFan system cooling, 4x Intake / 4x Exhaust, variety of fans.

Operating system: WIN10
Printer: HP DeskJet 3630 All-in-One

• 123.hp.com/dj3630

 

[BK-Morpheus]

The log file is missing any recording attempt.
How high is the maximum GPU load (can be checked with GPU-Z, as the Taskmanger is showing wrong values) while running the Game?

 

[Deleted member 165664]

That is because I am not recording when I have this issue. It is simply when OBS is open. Recording or not.

GPU-Z says the max GPU load during the game being on +OBS is 12%

 

[Deleted member 165664]

So no one has any idea?

 

[Deleted member 165664]

Recently moved to AMD GPU and starting using ReLive instead of Shadowplay (which I was using instead of OBS because of this)

but have been having some issues so tried out OBS again and whatever the issue here was has resolved itself somehow. No idea what happened but it is fixed thank god, now I can use OBS again. My friend also had the same issue with the same result haha