We study effects of the strange quark mass, ms, and of the QCD interactions, calculated to lowest order in αc, on the rapid rotation of strange stars (SS). The influence of rotation on global parameters of SS is greater than in the case of the neutron stars (NS). We show that independently of ms and αc the ratio of the rotational kinetic energy to the absolute value of the gravitational potential energy T/W for a rotating SS is significantly higher than for an ordinary NS. This might indicate that rapidly rotating SS could be important sources of gravitational waves.