I'm Asian am I more susceptible to having vascular diseases?

Generally no. As our asian friends modify to western life the risks resemble ours. There are a few conditions more common in other family trees and world backgrounds.
Depends. Cardiovascular risk factors are dependent on family history, smoking, cholesterol, hypertension, and diabetes/obesity. So if you have any of these risk factors then your risk is higher, the color of your skin is not as critical in determining risk compared to these risks above.