The trick is having the right music to stay engaged, in addition of course to the movie and pantomime being good in the first place. If you can enjoy, say, Fantasia without it needing dialogue then you could handle a silent film between the cards, with the right music. If you hate Fantasia then, yeah, you might prefer something dubbed or subbed, though there isn't as much subbing to put in because they purposefully cut down the dialogue so the cards wouldn't be too long.
As for finding a version with the right music, I think in the 80s someone did a version of Metropolis applying a more contemporary score. It won't have the newly recovered scenes, though, and those really improved the movie.
If you have Netflix, I suggest watching the colorized and black and white versions of A Trip to the Moon on there to compare what a difference a change in music vs dubbing makes to a silent film, since it's only 15 minutes long.