I've purchased https://www.amazon.com/gp/product/B08FFHFXV3
Before I had an HDMI2AV converter (Composite I think, the one with the yellow) to a SD grabber.
Before switching to the 1080p hdmi grabber I feel like my lights were a lot more responsive.
I'm using WS2801 SPI on a RaspberryPi 3b. Could it be that it's talking longer to process a higher quality image? My decimation is set to 8 and was 4 before. Would upgrading to a Pi4 help this situation?