But its SDK is not the c++ abominations like v8, and that alone is enough to choose quickjs or similar, since we all know here, that c++ (and similar, namely rust/java/etc) is a definitive nono (when it is not forced down our throat as a user, don't forget to thanks the guys doing that, usually well hidden behind internet...).
For performance, don't use javascript anyway...
That said, a much less worse middleground would be to have performance critical block written in assembly (RISC-V Now!) orchestrated by javascript.