After a few months of using Victra I Pro, noticed that rolling resistance is higher and really increases fuel consumption by 10-15%

Are you sure that much?? Meaning if your car previously reached 500km, now only 425-450km??

Yeah. Was on Yoko ES32 previously. Noticeably less mileage on UHPs for city stop and go driving. On highway the difference probably negligible

Confirm la de, Victra Ipro is consider performance type tires, while ES32 is ECO comfort type tires.
Sure it will impact fuel economy, you tot tires all same?

Used to drive longer distance so didn't notice the difference. These days only drive around PJ area so quite obvious