[SP] cap the timescale sensitivity scale when timescale > 1.0

[Razish]

If you set timescale > 1.0 in SP, your mouse sensitivity gets scaled up with it.

It looks like the intention was to slow your mouse sensitivity down when using force speed/rage, so let's cap timescale's influence to < 1.0

[bartrpe]

• code is correct (there's barely any actual code change, just value change anyway lol)
• i didn't find any other place that would affect these lines running through it with Visual Studio debugger
• it builds
• it works correctly ingame

[SomaZ]

Since this is just SP I consider this a QoL improvement.