patch 8.2.4673: redrawing a split window is slow when using CTRL-F and CTRL-B Commit: https://github.com/vim/vim/commit/8ef6997e2d90808dec033373c96dda68843af12e Author: Bram Moolenaar <Bram@vim.org> Date: Sun Apr 3 13:23:22 2022 +0100 patch 8.2.4673: redrawing a split window is slow when using CTRL-F and CTRL-B Problem: Redrawing a vertically split window is slow when using CTRL-F and CTRL-B. Solution: When deciding on USE_REDRAW bail out if scrolling more than three lines. (issue #8002)

src/testdir/test42.in diff