a 32x12 at 6000 would be 19HP, a 36x12 at 5500 requires 24 horses to turn. A 3W 200 will produce about 18 hp (on paper)
Expectations are not always realistic, nor is it realistic to ask for a comparison with 200cc engines.
However, if you give me < real life data > on 180cc engines, I will soon know how the 152 compares.