I’m not sure about that. Something very fundamental in Eevee changed greatly between 2.8 and 2.81. I have several scenes which work flawlessly on 2.8 in Eevee render, and in Look Dev on both Cycles and Eevee, but on v2.81 the viewport grinds to a halt in Eevee render and Material Preview on both Cycles and Eevee.
This is on a Ryzen 5 1600x with a GTX 1660Ti.
I haven’t been able to understand why this is happening so I cannot offer a fix. In fact, I have had to resort to doing all my work on 2.8 and only opening 2.81 when it’s time to render to take advantage of the new denoising.
