I understand Epic’s stance (to a degree), but I wouldn’t lay the blame solely on the M$ runtime. Our lab develops content using several COTS & proprietary engines for professional clientele, and the UE5.x product line is the only one with the added latency.
I’ve been trying to determine if it shows up in a finalized shipping build too, but the UAT is refusing to generate a packaged shipping build for me right now so I can’t validate just yet…