The phrase "quickly and easily" is correct and can be used in written English. It is often used to describe when someone was able to complete something with minimal effort. For example, "The new software allowed employees to search for products quickly and easily.".
So quickly and easily, it was weird.
"This should be done quickly and easily".
Pray for me that it comes quickly and easily.
Netscape, of course, was quickly and easily outmuscled by Microsoft.
How do you maintain a weblog quickly and easily?
It pairs quickly and easily with a Bluetooth-compatible phone.
Their specifications or prices can be compared quickly and easily.
Being a terminologist, I care about word choice. Ludwig simply helps me pick the best words for any translation. Five stars!
Maria Pia Montoro
Terminologist and Q/A Analyst @ Translation Centre for the Bodies of the European Union