It's nothing compared to the trills in the op. 111.
I still consider
Moonlight's (3rd movement) trills as MORE difficult than Op.111's (2nd movement). Here are some of the reasons why:
First, Moonlight's trill is more ABRUPT in timing (primarily because of the
Presto tempo) and you really need to execute it "as fast as you can" to make at sound indeed a trill; otherwise, you might end up producing a mere
turn effect. Op.111' trills are more mellow than fast.
Second, most Op.111's trill are mere BACKGROUND as much of the melody is played on thumb; on the other hand, Moonlight's trills are crucial part of the MELODY and must be clear, distinct, and even - Op.111's trills shouldn't be necssary so.
Lastly, Moonlight's trill fosters the difficulty of 4~5 trill wherein the former is in WHITE key while the latter is in BLACK. You see, such kind of trill is so rare and is actually almost
unpianistic (as far as fingering is concerned) - normally, by rule of thumb, we only use 2, 3 and 4 for black keys, never 1 and 5. On the other hand, I doubt if Op.111 has trills like this as it's merely in C major.
Anyway, this all is just a humble opinion.

In fact, I do not yet play Op.111 but I've sight-read it lots of times. But I've been playing Moonlight for almost 3 years and I still admit this trill is still killing me!

It's indeed a "killer" trill though it merely occurs twice!