@siracusa weird! Do you have loads of columns? Without seeing any slowdown it's hard to guess where the issue might be. Might be worth identifying the root cause rather than going for refactor number... 6?
@Drarok Are you using NSTableCellView or are you returning NSTextViews from tableView(_:viewFor:row:)? Or something else?
@siracusa returning NSTableViewCell instances in tableView(_:viewFor:row:) which are created by tableView.makeView(withIdentifier:owner:)
I think you might be holding something wrong!
@Drarok Yeah, me too, but see my other reply for the culprit!