Poorer performance of new KNIME nodes (5.X) compared to classic nodes (4.X)

We’ve noticed the new KNIME nodes such as the “Column Renamer” are slower to use than the classic “Column Rename” nodes. For most of these new 5.X nodes with the modern UI it takes significantly longer (1-2 seconds) to open the node configuration than the 4.X nodes with classic UI (instant) .

Is this issue known? Is there any improvement expected?

Column Rename

Column Renamer