Anyone have experience optimizing for PG Soft games? Struggling with performance on mobile.

I've been trying to play several of the newer PG Soft titles on my Android phone, but I'm running into some serious lag, especially during bonus rounds. I've already cleared my cache and updated the app, but the performance issues persist. I'm wondering if there's a known setting or optimization trick that I'm missing, or if this is just a general issue with the current mobile build. Has anyone else noticed this, and if so, what worked for you to smooth out the gameplay?