Why wont my slider change my variable,Why wont my variable update with slider

This is a script that i use for my movement with my cube. newSpeed is the variable that should be coming out of slider that I placed in my program. But for some reason my variable Sensitivity wont update.
Do you have any idea what could be the problem?

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First, Post your code in the post, not as an image (Use the code sampler or CRTL+K

Second, in your code, i dont see anything about the slider & the newspeed variable…