Is there a way to pull the landing page performance report data and display it by month and day? I'm currently using the Landing Page Performance report which requires me to manually update the setup criteria for each month and day.
What you see in Setup is your only option.
If you're looking for result by month and day, you should just clone your report so that you have one for month and one for day instead of changing it every time.
Are you using Revenue Explorer? A report like this can not be created in the standard Marketo Analytics section. You will have to look for a 3rd party app or build it in Revenue Explorer.
You can always look for this data in Google Analytics.