Loading speed, web and servers
mega menu
In short and in plain language
A mega menu is a large menu that folds out.
It shows many parts of a shop at once, often in columns.
If the whole menu is in every page, the page gets big. It can then load and react more slowly.
Definition
A mega menu is a large drop-down menu that shows many subcategories of a main item at once, often in columns. If the whole menu is already in the code of every page, the page can grow considerably. This can worsen load time and response time, even while the menu stays closed.