AVA203: I seem to have trouble with arpeggios

This question was sent by Robert. And he writes: Hi Vidas ... Robert here again from Vancouver Canada: I'm at a point where I read well and have pretty good independence with hands and pedals. I seem to have trouble with arpeggios though, left and right hand. Basically it's doing the fast transitions to other chords (in the progressions) which are often in inversions. Any material you know of or from your own courses that really exercises a disciplined technique? Cost factor I'm fine with as this is something I'd really like to get " under my fingers " yet, so to speak. I'm just playing this material way to slow. Appreciate your or Ausras input! 😃 Robert