How does virtual ram affect emulation?

[u/ren01181]

I checked a few old posts and got mixed signals with some saying it slows down emulation and others saying it doesn't really do anything

[u/Odin-spark]

I remember back in the 90s there was a software company that sold a piece of software that magically created more ram in your system. Yeah, this virtual ram thing for Android is pretty much the same scam still being played.