Hello im trying to import site from dev kinsta its taking 300gb, on kinsta its showing 27gb, i tried importing other sites takes normal size
Hello Daniel! 
Thanks for reaching out.
I hope you are doing well! This is Jovana from the Kinsta Team. 
That seems to be just a bug. You should let the import finish and it will show the normal size after pulling. Can you try that, please?
Please let me know if you have any questions.
Best regards,
Jovana