I'm running Windows 10 on a Dell Inspiron 15-5578 laptop with a 64-bit operating system, 16 GB RAM, Intel i7-7500 processor, base speed 2.70 GHz. Vector3D plotting is very slow. CPU utilization increases to 60% in this Mathematica's example from its definition of VectorPlot3D (attached as a Notebook):
VectorPlot3D[{x, y, z}, {x, -1, 1}, {y, -1, 1}, {z, -1, 1}]
CPU utilization can be decreased by decreasing the number of vectors plotted. For example, CPU utilization is less than 1% when nvectors in the example below is 3, but increases to 40% when nvectors is 4.
nvectors = 3;
VectorPlot3D[{x, y, z}, {x, -1, 1}, {y, -1, 1}, {z, -1, 1},
VectorPoints -> {nvectors, nvectors, nvectors}]
There are no other programs taking up significant CPU and utilization by Background Processes and Windows Processes in Task Manager sum to less than 10%.
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