First off, what issues are you experiencing ?
Can't say I've ever read anything about bending the Extractor .... I know that's how you adjust the Tension on a 1911 Extractor but not the CZ
I have removed the Extractor and filed the inside edge of the Notch in the Bolt and the Barrel where the Extractor sits, to allow the Extractor a bit more inward movement, but that's about it for the Extractor
It's a small, flat part, and would be tough to bend it laterally