'export as' to extract by x2 or x3

[37603620gjto]

Hello.
If you use 'export as' to extract multiples by x2 or x3 in Photoshop
The font and shape(path) are not broken, but the smart object image is broken, right?
Font and shape are extracted well, but why is the smart object less responsive? T.T
Is my method wrong?
The smart object image was large enough to be extracted as x3.

When will it be updated? I'll be waiting!