Make payment modal stats load on demand

[jeawhanlee]

Is your feature request related to a problem? Please describe.
We are loading the modal on every admin page in the footer, and by so doing, we also load the image stats along side which contain complex queries.

Describe the solution you'd like
We need to make this stats load on demand.
Possible solution is discussed here with following comments.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.