So I am looking for a a fast commuter bike, to save me using hardtail everywhere. Last week I bought a Cannondale badboy 1 2020 model as I thought it would be the bike for me. However found the belt drive quite slow, too much friction compared to chain bikes. So decided to sell. Now I am unsure whether the Cannondale bad boy 2/3 (chain driven) bikes would be much faster or whether there not very fast either and better of with a specialised Sirrus?