EnumeratedShapes horrible performance

[cchance27]

I posted this over at ... aszc-dev/ComfyUI-CoreMLSuite#35 because thats where i'm working with it, and basically found that when i converted to EnumeratedShapes and used 512x512 (one of the shapes) instead of a stock 512x512 conversion to coreml, the model ran 5x slower, 5s/it instead of 1s/it (without any coreml, it's only 1.3s/it, so the enumeratedshapes makes it 4-5x slower as just not using coreml at all.

Has anyone else experimented with the Enumerated Shapes and Ranges vs the single size selection?