I use EVE-NG for simulation environments.
However, depending on the resources of your host device resources can quickly be consumed.
In my labs I tune the CPU and RAM through the EVE GUI.
Below you can see I've used 1 CPU and 2048 RAM on my nodes.
NOTE: The nodes do take a while to boot...but eventually get there.
Give it a go if you are running out of CPU/RAM resources. Hopefully it may help.
Side note use 10 interfaces to be available on deployed nodes

*To change simply click on a node that's in your topology and "right" click and Edit in the pop up below
or
*When you add the node do this at the outset.

Happy learning
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Kamal Takodra
If my post was useful accept solution and/or give kudos
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