patch 8.1.0372: screen updating slow when 'cursorline' is set commit https://github.com/vim/vim/commit/90a997987dbbe43af3c15118a35f658f0f037d1d Author: Bram Moolenaar <Bram@vim.org> Date: Wed Sep 12 21:52:18 2018 +0200 patch 8.1.0372: screen updating slow when 'cursorline' is set Problem: Screen updating slow when 'cursorline' is set. Solution: Only redraw the old and new cursor line, not all lines.