> Doesn't have anything to do with Starkk's speed, just the fire rate of his Los Lobos.
The speed of the Ceros are impossible to tell without using Shunsui as a reference. Shunsui was not able to fully dodge R1 Starkk's first Cero, yet he was still able to Shunpo away from Cero Metraletta from a greater distance. Although Starkk being able to move his gun around made trying to dodge it relatively useless.
It should be as fast as Grimmjow, Hallibel, and Ulquiorra's Ceros.
Overall the only people with the speed and stamina to dodge all 1000 Ceros fired at once would be Aizen, Dangai Ichigo, and possibly Yoruichi.