Optimization continuous tracing

other packages show an impact of about nearly 50%

this package manages an overhead of about 5% (allegedly)

are such optimizations interesting?
https://github.com/fast/fastrace#why-is-fastrace-so-fast

Start by reading the linked fastrace comparison and the issue discussion. Measure or otherwise establish the current continuous-tracing overhead in this package, then clarify which optimization is desired and what overhead target would count as done; the issue currently names no files or tests.

Written by the indexing model from the issue text.