They are slow, unoptimised , massive memory and cpu hogs. Here is the best example https://www.theregister.co.uk/2017/03/23/cursor_devours_cpu_cycles_ms_code_ed

They are slow, unoptimised , massive memory and cpu hogs. Here is the best example https://www.theregister.co.uk/2017/03/23/cursor_devours_cpu_cycles_ms_code_editor/ https://www.theregister.co.uk/2017/03/23/cursor_devours_cpu_...