Engine is hard starting

More then likely this is a vacuum leak. Here is a guide that will help with figuring this out for sure:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

If there is no vacuum leak then we need to monitor the fuel pressure and find out if that is correct as well.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

I suspect this is an air issue which is why we lead with a vacuum leak but if both of these check out then we will need to know if there are codes.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

If there are no codes then we need to move onto a possible mass air flow issue but we can get to that once we get through all this. Thanks