Script running too slow+error on window 7

[white700]

I mean any script I run on win7 in online games get me this error, the script can be something as simple as that

Macro Multiple shoot

Code:

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rep
,wait 0 S "image:hA496E620"

,0.1
,key+ 2
,0.05
,key- 2
,0.20
,key+ w
,0.02
,key- w
,0.05