The current version of the library achieves 13ms per binary operation on a core-i7 instead of 50ms in the original paper. The improvements are described in the

The current version of the library achieves 13ms per binary operation on a core-i7 instead of 50ms in the original paper. The improvements are described in the new paper: https://eprint.iacr.org/2017/430 https://eprint.iacr.org/2017/430. Hopefully, the packing techniques will be also present in the next version of TFHE.