Big Sky

vimのtipsに何かいいのがないか探してたら...

:help scroll-smooth

なんてのを発見。

中身みたら...

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Smooth scrolling                                        *scroll-smooth*

If you like the scrolling to go a bit smoother, you can use these mappings: >
        :map <C-U> <C-Y><C-Y><C-Y><C-Y><C-Y><C-Y><C-Y><C-Y><C-Y><C-Y><C-Y><C-Y><C-Y><C-Y><C-Y><C-Y>
        :map <C-D> <C-E><C-E><C-E><C-E><C-E><C-E><C-E><C-E><C-E><C-E><C-E><C-E><C-E><C-E><C-E><C-E>

(Type this literally, make sure the '<' flag is not in 'cpoptions').

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と...

まぁスムースですわな。
書いた奴出て来い