Parallax problem

Well the parallax works fine…Its just the vector grass I am using makes it run verrryyy slow…is their anything I can to make it smoother?? Im at 30fps already and its that laggy.
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http://ronnieswietek.com/newpf

[U]and heres is my fla

[/U][/U][U]http://ronnieswietek.com/newpf/version2.fla

…its CS3
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