Change Vertex Color Opacity in Sculpt Mode

I'd like a slider to reduce the opacity of vertex color so they're less distracting but still visible. For example if I have pure black vertex colors then I can't see the matcap. Just a slider underneath Mask and Face Sets. I know you can make a shader to reduce vertex color opatcity in Material Preview, but I don't sculpt in Material Preview because it tanks sculpting performance.