Because of the pressure of studios, the amount of CGI in many movies have become a big problem. It's most certainly not the fact that is the CGI (though I do have a strong practical preference, but that has nothing to do with this) is always bad, it's that the VFX artists don't have enough time.. THIS is the real problem. These films always end up having to sacrifice the quality and detail of the VFX in one shot/scene to make sure a more crucial shot/scene looks good. They seem to never have enough time to achieve their fullest and best work on everything they want to.

It's why there should be a balance between CGI and practical, so that you get an optimal quality. But also, studios need to dedicate much more time to both pre-production AND post-production. ALSO, they really need to stop announcing release dates so damn early!