The list of good practices may help you to avoid a slow performance when working with EcoStruxure Machine Expert:
Verify that the hardware of the PC meets the system requirements.
Use a Solid State Drive (SSD) and verify that sufficient memory space is available. Contact your IT administration for further details.
Consider uninstalling components that you do not need via the EcoStruxure Machine Expert Configuration Manager.
If you are using Vijeo-Designer integrated in EcoStruxure Machine Expert, consider to disable the automatic symbol export function. To achieve this, activate the option in the EcoStruxure Machine Expert Logic Builder dialog box.
Consider activating the option EcoStruxure Machine Expert Logic Builder dialog box if this function is not frequently used.
in theAvoid large POUs. EcoStruxure Machine Expert has no limit for the size of POUs programmed in graphical languages like LD. Nevertheless, it is a good practice to call POUs in sequences instead of creating one large POU.