What dashboarding tool are you using?
You say the "report" has around 10 queries, are they all sourced from this same view? If not, have you managed to isolate the problematic query or are you sure it's the HANA view? What happens when you isolate them one at a time?
There inherently is overhead when passing to another tool (I assume BOE), but from the info you provided its near impossible to help, please provide more details.
Regards,
Justin