How Reduce Memory Usage of each Plugin

Hi There,

Love the Plugins done by WPMUDEV! Are there any way we could reduce and minimise the memory usage of each plugin?

As most user are using Shared Hosting. Memory consumption is high and maxing out our hosting.

Appointment Plugin seem to use up a lot of memory. Have intention to install other complex plugin (One Example: Membership Pro) from WPMUDEV and am concerned my server might not be able to support it.