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(Sonoma 14.4) App containing media (Videos, audio, images), takes time to open or is extremely slow

Hi, I started by changing SMBIOS for a MacPro7.1 and that solved my lag problem, but it did not solve FaceTime, Youtube, Spotify etc... which take a while to open or play audio

thing to know, I use two FireWire sound cards (Focusrite Saffire Pro 40 and Pro 24 DSP) whose drivers are no longer officially supported since MacOS 10.15

I wonder if it wouldn't come from the aging drivers of the cards which would cause the codec to bug...

Also, I cannot use AMFIPass.kext, it never wanted to work despite several tries and methods

I also completely disabled the iGPU and removed the DeviceProperties line

I will tackle the SSDT later because it requires a lot of time and also not to fail

the PciRoot addresses that I have are not the same as in Dortania's guide, I had checked before integrating them
 
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