psp 128gb via 1 mirco sd hc + single adapter

[[Unknown]]

Different cards are different speeds. A cheap 128GB card might be a class-4 card, and be slow, or it might be a UHS card and be fast. Size and speed are not necessarily directly related.

You want one that advertizes it is at least a class-10 or UHS (ultra high speed) device, and definitely nothing like a class 4. These are speed classes.

A larger stick can be a bit slower, but for example my larger one is much faster than the 8GB Sony one I had before.

-[Unknown]