I need a tool that must be faster, but not necessarily as sensitive, than BLAST in searches of DNA sequence against a DNA database. I know some tools such as Diamond, which is much faster than BLASTx and BLASTp, but it doesn't work for BLASTn-like situations. I already have tried USEARCH, but only its 32-bit version is available for free, and can only deal with small/medium datasets.