Xbox Series S same performance on external hard drive?

Let's say I'm installing Rainbow Six Siege on an external hard drive

Sure, loading times are long, but I can still play at 120fps, right?

With my Kunpel then only 60FPS went on the external

Exactly on 60?

Approx 56 in some maps

But exactly 60 would be weird. That is then probably V-Sync?

Without

But nothing should really change in terms of performance

But it has changed

And in less expensive games?

Games that are optimized for X / S must be saved on the internal SSD or Microsoft's own external SSD for the corresponding slot in order to be able to use the advantages.

If you play from an external USB hard drive, also SSD, you can only play the one version. So you don't have 120Fps either.