HELP: After sleep, computer is laggy when playing YouTube videos using the vp09 codec

[jasperlevi]

Of late, my Hackintosh behaves very weirdly after waking from sleep. When I play a YouTube video that has the vp09 codec, it lags like crazy, and the whole OS is laggy (see video link) This happens only while playing vp09 videos on YouTube, and the whole OS gets stuck for a few seconds. This only happens when I'm playing a video on YouTube (with vp09 videos in any browser, av01 videos play just fine, and the system remains smooth). Also, sometimes the computer does not come out of sleep, especially if it has been left sleeping overnight.

 

Attaching my EFI folder as well. Any help would be greatly appreciated.

 

My EFI folder: https://mega.nz/file/Sw4GDaZL#71Rdk8WFq8G3sDKfPcxaM_gZtl8O6nat-LcAFTOTuX8

 

Video showing laggy OS:

[MaLd0n]

What hardware? EFI folder is very strange.

[jasperlevi]

10 minutes ago, MaLd0n said:

What hardware? EFI folder is very strange.

Gigabyte Z390 Aorus Master

intel 9900K with igpu enabled (OC'd to 5.1 GHz, if that matters)

Sapphire Pulse AMD Radeon 5700XT

Primary drive is a Samsung 970 EVO Plus 1TB

 

I updated the EFI to Opencore 1.0 using OCAT. Maybe that caused some weirdness...?

[MaLd0n]

EFI jasperlevi.zip

-Delete old EFI folder and paste new. Don't use merge files
-Don't use Drag and Drop into EFI partition. Use Copy/Paste instead
-Reset NVRAM one time - with OpenCore use entry "Reset Nvram" / with Clover use F11 key on boot screen

[jasperlevi]

Thanks. Everything seems to be working so far. Is it possible to do this using the iMac19,1 SMBIOS?

[MaLd0n]

Yes. Change smbios and remove -wegnoigpu bootarg. In some cases IGPU enable for hardware accel cause slow problems. U can try with shikigva=80 in this case.