I’ve heard some users complaint about the slow performance when they switch between layouts, then how to deal with it and what has caused this?

To solve the problem of low switch between layout tabs, users need to know what has caused this. There are two main reasons for slow performance between layout tabs: the drawings are very complex and contains many data and graphics; there are too many viewports on the layouts and the viewports have used different settings.

If it is for the first reason, then there isn’t much we can do about it except that we can get rid of some useless data. If it is for the second reason, then we can totally control the number of viewports on the layout. I often see drawings that contain lots of drawing frames and viewports, as shown in the following picture,

It is not advisable to put multiple drawing frames on the layout and have many viewports. Every viewport is a unit of model space data, the more viewports on one layout, the more data flow and the more time to response. Multiple drawing frames on one layout also contradict what makes a CAD layout and many properties of layout would be disabled.

One drawing frame, one layout

One drawing frame within one layout is correct and advisable since it will make the data flow smaller and therefore the switch between layout tabs would be faster, the standard drawing is shown in the following picture and we should create drawings like that,

Switching between layouts is pretty much like opening a new drawing, to speed up the process, the most efficient way is to reduce the data within the layout by reducing the viewport number on one layout.

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