Culling and editing are two different jobs
Editing software wants to render every frame beautifully. That is exactly what you do not need when you are staring at 2,000 frames deciding which ones live and which ones go.
PhotoTaken loads a folder as a plain contact sheet in seconds. No catalog, no import step, no session to build. You move with the arrow keys, rate and color the shots you'll use, and every rating and label is written to standard XMP. Because those tags live in XMP, they carry into Capture One and any other tool that reads them, so the picks you made while culling are waiting for you when you sit down to edit.