Noticeable lag when turning on Hidpi mode on Hackintosh with Ryzen 5 5600H

[pokewizardSAM]

Hey there, great work man!! you have done a awesome job building this and I truly appreciate this tool. Works as it should and enabled super high resolution , my screen shots look way cleaner now. But I have faced an issue which regard to the noticeable lag which I face when using the high dpi mode. I have attached the video bellow as example.
without hidpi: https://drive.google.com/file/d/1DCP6QSl-heOdCZSPjwvV38r3HKIlo0sH/view?usp=share_link
with hidpi : https://drive.google.com/file/d/1VTI9nfdOaFz5MztO_6JLWbS01ohBrdGn/view?usp=share_link

The lag on hidpi turned is a little exaggerated due to recording simultaneously and irl I can see the animation happening unlike in the video. Both the examples were recorded with same resolution and a refresh rate of 120hz. I would like your insights on this. Thank you for your time and effort

[waydabber]

Hmm. Something looks weird here. I don't think there is a Mac with a built-in display that has 1920x1080 as native resolution and 120Hz. I see that it is not an XDR display from the menu but non-XDR built in screens don't have 120Hz. What platform are you on? Or is this Intel/Hackintosh? If so, what GPU does it have?

[waydabber]

(Ok, I see it's Intel from the "Aim for a HiDPI default resolution" - but then is must be a kind of Hackintosh notebook, right?)

[pokewizardSAM]

(Ok, I see it's Intel from the "Aim for a HiDPI default resolution" - but then is must be a kind of Hackintosh notebook, right?)

yeah it's an hack, it Has Ryzen 5 5600H with full graphic acceleration (2gb allocated). It's running from the igpu and the screen native resolution is 1920x1080 on windows

[pokewizardSAM]

would like to add that scalling works perfectly on the above configuration, it's just that it's laggy in animations.

[waydabber]

I see. Well, this seems to be a driver issue, it might be that the hacked driver is not optimized for a 4x framebuffer size for some reason. I am not sure which driver it uses but if it is the basic EFI framebuffer driver then a slowdown like this is expected. If it is a kind of accelerated driver (one of the AMD drivers?), the maybe something is not configured well? Do you experience the same with external displays?

[pokewizardSAM]

No actually I haven't tried it with external displays. I will try that tomorrow and give updates. As for the drivers, amd igpu support was recently made possible by the developers of Nootred, think they patched the native Vega drivers to make support for igpus. Though I am totally not sure about the logic it uses , I will try to ask the devs and provide you more information.

Edit:typos

[pokewizardSAM]

Update : I talked with the dev of NootedRed and as they told me there are still many unknown quirks to figured out and that will only happen in the coming future. So I should assume that either my hardware Is not able to dish out the performance or there is some room for optimisation in the kext. On the other hand my laptop's display runs actually quite smooth with macOS when using 1920x1080 and no hi-dpi. I tried doing different configurations as well and came to that conclusion that I need to find a resolution which enables high dpi while keeping the downscaling to minimum and is somewhere near 1920x1080. I know that macOS uses 2x downscalling and that might be the issue here. I have attached what I based my conclusions on

So what I want to know is is It possible to use 1920x1080 as my image resolution(the image size is from full desktop screenshot) and still keep the the 144 dpi so everything stay sharp and clear but not absurdly large. If not then is they any other method which can help me.