Juninho is currently holding the european record of 44 freekick-goals scored for Lyon in 344 games, he scored a freekick in every 7.8 matches.
Calhanoglu meanwhile at the age of 21, already scored 11 freekicks in 67 matches, therefor scoring a freekick in every 6.0 matches.
Unfortunately data is not precise on the conversion rates and also the freekicks they scored in lower or non-european leagues, therefor an exact comparison isnt possible, but Calhanoglu not exactly unlikely to emulate Juninho or even overtake him statistically. Both scored absolute stunners, even from like the midfield-line and shit, its crazy. Also I believe it was Calhanoglu aswell who held the european record last season for goals outside the box.