The tips are specific to the desktop version because macros don't run in the browser version. Have you noticed that your screen sometimes flickers while a macro is running? Calculation = xl Calculation Automatic Similar to setting the Calculation property to Manual, disabling events can have unexpected results, so use it with careful consideration.This happens when Excel attempts to redraw the screen to show changes made by the running macro. If you use the macro recorder, you may have noticed that it's fond of using the Select method to explicitly reference things.
If it tries to calculate a cell and finds that it is dependent on some other cell lower down the chain, it rearranges the chain to move that cell downwards.
changing active cell by cursor keys takes ~1 second) and scrolling the file is lagging hugely.