[Paraview] Sub/Re-sampling advice

[Nicholas Yue]

Hi,

     I have a collection of datasets that is 500 x 500 x 100 scalar and 
vector

     I can load them in Paraview but it is difficult to work with (slow).

     What filter would you recommend to sub/re-sample the inputs to a 
smaller amount e.g. (100 x 100 x 20), so as to get a quick visualization 
(interactive) of the datasets?

Regards