Implement faster initial pairwise score calculation method

[AbUndMax]

e.g. fast k-mer

Wilbur WJ, Lipman DJ. Rapid similarity searches of nucleic acid and protein data banks. Proc Natl Acad Sci U S A. 1983 Feb;80(3):726-30. doi: 10.1073/pnas.80.3.726. PMID: 6572363; PMCID: PMC393452.

or mBed

Blackshields, G., Sievers, F., Shi, W. et al. Sequence embedding for fast construction of guide trees for multiple sequence alignment. Algorithms Mol Biol 5, 21 (2010). https://doi.org/10.1186/1748-7188-5-21