Improve binary search in nodes

[tzaeschke]

Have a look at these links for improving binary search:

• https://mhdm.dev/posts/sb_lower_bound/
• https://algorithmica.org/en/eytzinger
• https://en.algorithmica.org/hpc/data-structures/s-tree/
• https://github.com/ehrmann/branchless-binary-search
• https://stackoverflow.com/questions/11360831/about-the-branchless-binary-search#54273248