Best OBS studio settings for my 2015 budget gaming pc?

[skrapz]

I recently got a budget gaming pc from 2015 or 2016 i'm not really sure about the date, here are the specs:
I7 6700
NVIDIA GEFORCE GTX 750 TI 2GB
16GB DDR4 RAM
WINDOWS 11 PRO 24H2 (yes I know it's unsupported)
driver version 576.80
and i'm gonna be saving to a 1tb seagate hdd that is 7200rpm if that helps.
I'm using 31.1.2 btw and sometimes there's weird circular artifacts i'm not too sure about
my current settings are attached to the thread
and i'm using nvenc h.264 as my encoder and recording in 1080p60fps and I record simple games like minecraft, tf2, and roblox and i'm gonna edit in sony vegas 13 so I don't want footage that is laggy but not too low quality either and I need smooth good quality videos that works flawlessly with vegas (I also use window capture for roblox since it doesn't work with game capture)

 

[rockbottom]

I still have a 6700k in service but I upgraded the GPU about 5 or 6 years ago with a 1660 Super. Big bump in performance.

Anyway, switch to CQP Rate Control.

The CQ Level is your Quality Setting, start @ 18. Lower the setting if higher quality is desired. I generally stay in the 15-18 range.

With that hardware, Multipass should be set to Single Pass & 0 B Frames. I'm fairly certain no B Frames will be encoded even if set to do so but if they are in your recording, scrubbing the timeline in Vegas will be much much slower as those B frames need to be decoded & will add extra load on a weak system.

Make sure you check the Hardware decoding in Vegas, I'm fairly certain it's disabled until you manually enable it.

 

[rockbottom]

Vegas Pro 17 Preferences. Should be similar in 13.

 

[rockbottom]

Based on the info in the link below, you may need to lower that Preset from P5 if there's any encoding lag observed. P3/P4 should do the trick. With the CQP Rate Control, quality is not affected using the lower Preset(s), only the throughput/compression level. As a result, the file will be slightly larger due to less compression.

NVIDIA Video Codec SDK v13.0

docs.nvidia.com

 

[rockbottom]

Just based on performance numbers that GPU looks like it's going to struggle maintaining 60FPS while playing those games, even in the lowest quality setting. I think you may run into massive rendering lag while using OBS. 1080p/30 or 720p/60 more than likely will be the better options.