Choppy Recordings After 26.0.2 Update

[Volcomintality]

I usually record my footage when playing a game and only after I updated OBS did I start encountering frame drop issues. I play Rainbow Six Siege and in the game menu, OBS preview will show that it's recording as normal, I will minimize the window and play a game. But once I end the recording and play it back, the recording is either extremely choppy or unviewable at almost < 5 fps. I am new to OBS and have watched the guides on how to set it up as a beginner but haven't had these issues previously until the update.
*I did run a folding software in the background but didn't have issue before. But as a troubleshoot, I have minimized how much resource it uses, and finally stopped having that run in the background.*

My rig:
i7-8700k
EVGA 1080SC
16gb 3200mhz
Not sure if it matters but:
1tb m.2 ssd to play the game
2tb HDD to store video

 

[qhobbes]

1. If available via Windows Update, update Windows 10 to 2004 per https://obsproject.com/blog/five-simple-tips-for-new-streamers and #2.
2. The version of Windows you are running (1909) has a limitation which causes performance issues in hardware accelerated applications (such as games and OBS) if multiple monitors with different refresh rates are present. Your system's monitors have 2 different refresh rates (144 and 60), so you are affected by this limitation.

To fix this issue, we recommend updating to the Windows 10 May 2020 Update. Follow these instructions if you're not sure how to update or set both monitors to the same refresh rate or disconnect a monitor.
Also set the refresh rate on your 144 Hz monitor to 120 and cap your games at 120 FPS.
3. To ensure that OBS Studio has the hardware resources it needs for realtime streaming and recording, we recommend disabling the "Game DVR Background Recording" feature via these instructions.
4. Run OBS as admin.
5. Record to FLV or MKV. If you record to MP4 or MOV and the recording is interrupted, the file will be corrupted and unrecoverable.

If you require MP4 files for some other purpose like editing, remux them afterwards by selecting File > Remux Recordings in the main OBS Studio window or enable Auto remux in the Advanced settings.
6. Display and Game Capture Sources interfere with each other. Never put them in the same scene.
7. Multiple Game Capture sources are usually not needed, and can sometimes interfere with each other. You can use the same Game Capture for all your games! If you change games often, try out the hotkey mode, which lets you press a key to select your active game. If you play games in fullscreen, use 'Capture any fullscreen application' mode.
8. In your Game Captures, SLI/Crossfire Capture Mode (aka 'Shared memory capture') is very slow, and only to be used on SLI & Crossfire systems.

If still having issues after making those changes, post new log.