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[Archived] osu! gets progressively choppy throughout the map when recording/streaming with OBS

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Topic Starter
ciinTri
As the title says, performance at the start of the map is usually great, and gets progressively worse when playing a map.

Framerates are completely fine, running on Optimal hovering around 930 FPS and never dips under 800. But it's almost as if the refresh rate is slowly turning from 120hz to 60hz when playing a map.

Here are some things I've tried to determine which causes the issue (nothing worked out of these):
- Turning on/off Compatibility Mode
- Turning on/off Reduced Dropped Frames
- Disabled Fullscreen Optimizations
- Switched to Cutting Edge Version 20240404
- Reverted All NVIDIA 3D settings to defaults
- Disabling/Enabling Hardware Acceleration in Discord
- Closing Discord
- Turning on/off Game Mode
- Turning on/off Hardware-accelerated GPU scheduling

Programs running while recording/streaming
- Blondazz KeyOverlay
- gosumemory
- OBS
- Discord
- Huion Tablet Driver v14.8.165.1210

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Now for my OBS, I am running it on Administrator mode and Normal process priority.

OBS Output Settings

- Video Encoder: NVIDIA NVENC H.264
- Rescale Output: Disabled
- Rate Control: CBR
- Bitrate: 6000 Kbps
- Keyframe Interval: 2s
- Preset: P5:Slow (Good Quality)
- Tuning: High Quality
- Multipass Mode: Two Passes (Quarter Resolution)
- Profile: High
- Look-ahead: Disabled
- Psycho Visual Tuning: Enabled
- GPU: 0
- Max B-frames: 2

OBS Video Settings

- Base Resolution: 1920x1080
- Output Resolution: 1280x720
- Downscale Filter: Bicubic
- FPS: 60

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Computer Specs:
Processor: Ryzen 7 1700
GPU: GeForce RTX 4060
RAM: 32 GB (2 x 16 GB) DDR4
OS: Windows 10 Pro 10.0.19045 Build 19045


osu! version: Stable 20240330.2
Topic Starter
ciinTri
Got a finding!

After the map starts to lag mid map, pausing the game then resuming seems to fix it. Any Ideas?

Edit: And also, never seems to lag on maps that's about 1:30 minutes long (short maps), only happens on maps that are longer than ~3 minutes.
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