It is. I just cannot find the bottleneck. Though it is probably many things. I do not own an O3DS so the way I test it is disabling the L2 cache and higher clock speed on the Luma New 3DS menu. It halves performance in nearly every scene...
Hopefully it will at some point. This is not a "making it compile and fixing it from there" kinda port. It is almost a full rewrite. The original source has way too many platform dependencies.
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Still working on it. Just at a very steep...