Is ( 09C) a slow rubber ?

Compared to G1 or H3 boosted - is it faster or slower then these 2 ?

What about durability ?Does it get much slower after 2-3monthes/20hr “??

My techniques is good. I just feel that slower rubbers need more strength and with a lot of repetition in training 2-3hrs my shoulder sometimes kinda hurt me. But if its not that slow i want to buy it ..