Despite reports rims run shit?!

Hi! I bought a Daihatsu YRV in winter accordingly also on winter tires test. Now I have mounted the summer aluminums and only problems at 80Km/h you can notice light vibrations in the car and the faster you drive the worse it gets and the steering wheel is wobbly. With the steel rims 185er R14 no problems at all. The aluminums are 195er 45 R15 reports available incl. registration of the distance discs of each 15mm. I have the 4 new tires and the aluminums are also But the problem remains completely fine. How can it be that you can get an expert report for such a thing if rims don’t run properly on a car. Someone might be a solution to my problem?