Hello again, ALRAYDO! I have the exact same problem, and I am solving it by playing shorter Chopin Nocturnes, Waltzes, Preludes, Etudes (Not the loud ones, otherwise I would break the church's small digital piano).
Usually I try not to play something loud and fast, except one time, I tried to play Chopin's Etude Op 10 No. 12 on the church's piano, and I had to stop, because the piano is very light and it almost turned over.
People at my church usually like short, popular classical music. The ones they ask me to play the most are: the champion, Chopin's Nocturne in C# minor, which I played about 20 times... his Waltz L'adieu, ands shorter pieces by Brahms (op 116 or 118).
I save the virtuosistic display for the competition, hehe...

Liszt...
Maybe one time I'll play Rachmaninoff's Prelude Op. 3 n. 4 in C # minor...
Anyway, that is my opinion, just play simple music by Brahms, Chopin, Beethoven, etc...
And if you are thinking about a "quick" challenge you can try Liszt's Transcedental Etude N. 1, the Prelude. It has technical showcase, and it is short...
Bach's Inventions and pieces from both English and French suites are also very good, most are short and with a very nice air.
The same case is found on Liszt's Canzone from Annees de Pelegrimage, Venezia and Napoli.
Maybe Mendelsohn's Songs Without Words, most of them are not too long.
There is a wide range of short music to choose from...
I hope this was helpful

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Sincerely,
Mario Barbosa.