This is the 5054th most frequent Polish word.
pozwoliło
"Pozwoliło" means "allowed" or "enabled" in English.
The word 'pozwoliło' here is used to indicate something (the experience) enabling or making something else possible (understanding the value of patience).
To doświadczenie pozwoliło mi zrozumieć wartość cierpliwości.
This experience allowed me to understand the value of patience.
In this sentence, 'pozwoliły' expresses that something external (better working conditions) enabled the workers to achieve something (better results).
Lepsze warunki pracy pozwoliły pracownikom osiągnąć lepsze wyniki.
Better working conditions allowed employees to achieve better results.
'Pozwoliła' in this context demonstrates how a certain factor (technology) facilitated a notable outcome (improvement in efficiency).