Multithread Upscaling

[jo8282]

My workflow generates 4-6 pictures/batch, then uses the Highres Fix Upscaler and afterwards the Non-AI "Upscaler1" and it seems the pictures are upscaled sequentially (CPU+GPU Load goes down a lot while upscaling while 1 CPU Core is at 100%), at least on the "Upscaler 1", is there a way of Multithreading this? I have a decent machine (3090, 16 cores, 128gb ram), and it should be able to handle more in parallel, at least 4 or 6 imho.