I have a sequence of objs and I have converted them to glTF. To do so, I have a glTF mesh and a morph target for each of the objs in the sequence. I also have an animation to switch from one morph target to another. This glTF file occupies 65 MB, but when I imported into blender, the .blend file occupies 1.1GB and its really difficult to work with it as its not responding well.
The blend file basically consist on a mesh, 4k shapekeys for that mesh (which represent the obj sequence) and an animation for each one of the shapekeys values.
Is it normal that something like that use so much space and its so unresponsive?