Piano Warmup

I'm getting ready for a concert primarily covering Piano sonata No.8 mvmt 3 by Mozart and Hungarian Rhapsody No. 2 by Franz Liszt. I'm not used to playing a piece like this and don't know any warm ups that are difficult enough for something such as said. I've been struggling to get the faster parts until practicing for about an hour and usually I start to get the hang of it every time I practice.