What do you consider a significant improvement? Recently a record was set by a margin of 16 seconds. The old record was eight minutes thirteen seconds, 8m13s. The new record is seven minutes fifty-seven seconds, 7m57s.
For this thirteen-second improvement is described as smashing, crushing, and trouncing. Strong language. Pause, count to twenty. Did that take long? Doesn’t really seem so, does it?
When you are working on a skill, keep in mind small improvements are significant.