My research group uses paraview v4.3.1 with a syncIO file format reader plugin. We used to use v3.14 but we upgraded file formats to syncIO and it was necessary to switch Paraview versions as well. Unfortunately, v4.3.1 is significantly slower than 3.14 for us. I am not sure if this is inherent to version 4.3.1, there is some compatibility issue, or if the plugin caused this. Visualizing large datasets is essentially hopeless currently. We use a VPN to login into our remote cluster and run paraview from there. I am just curious if anyone has had a similar experience and if any insight can be provided to help speedup paraview without changing versions.