Advanced Graphing vs. plotimplicit()

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Hi, I was wondering what the difference is between Advanced Graphing and the command plotimplicit() in the Geometry App. For example, when I graph TAN(X) = SEC(Y), Advanced Graphing does it no problem. However, when I do the same thing in the Geometry app and type in plotimplicit(TAN(X)-SEC(Y),X,Y), the calculator is either stuck in a loop or super slow at graphing the curve. Is there some sort of workaround to this? I'm on the Beta Version 20210428. Thanks!