Vsti and Notion 3

Just purchased Notion 3 and now having problems with vsti live playing. I´m using Omnisphere and Stylus RMX. When using with daw like Presonus Studio One and Cubase sounds play fine but when playng in Notion sample rates seem wrong and for example Stylus loops play faster than should be. I´ve been using Notion as standalone and had no luck opening as Rewire. Does this have to do something with audio driver since I´ve had no luck using Asio4all or does Notion has to be used only as slave with rewire? I don´t like the idea of using likes of Finale or Sibelius since Notion is the most suitable software for me. Thanx for any suggestions...