[JoBo]

Thanks for your quick reply, sounds reasonable! Redrawing once per second f e would be fine with me personally, since it is usually a very slow scroll. But I assume the overhead for rendering the chordpro files must be obnoxiously huge for some reason? I also notice that resizing/pinching chord pro files is somewhat sluggish so I guess it is related. Is it possible to do a less taxing variant of rendering whereby the full .cho is rendered offscreen in a buffer and then copy/blit the relevant part of the bitmap onscreen?