The phrase "a better backdrop" is correct and usable in written English.
It can be used when discussing a more suitable or improved setting or context for an event, situation, or visual presentation.
Example: "The new park provides a better backdrop for our outdoor wedding than the previous location."
Alternatives: "an improved setting" or "a more suitable background".
Bin Laden couldn't have asked for a better backdrop to his agenda.
The new chancellor could barely have hoped for a better backdrop.
Yet could there be a better backdrop to surveying the meagre filmography inspired by the battle for the Ashes?
"I cannot think of a better backdrop to these inaugural awards than Wembley," says the FA's chairman David Bernstein.
He said the planned new TKTS home would be a better backdrop for the priest's statue, which he described as visually lost amid the "erector set" jumble of today's booth.
If you can dream up a better backdrop for the first postwar movie of the second most lusted-after pin-up girl of the second world war, then go ahead, impress me, but I think Vidor – and his female writers and producer – had this one pretty well covered.
A strong economy is a far better backdrop for property than inflation ever could be.
Now Rockstar is moving into perhaps the only genre that provides an even better backdrop for those themes: the western.
What better backdrop to announce a rejection of the Keystone XL pipeline than a shining set of solar panels on the White House roof?
"I'll probably see you there!" There is arguably no better backdrop for an art festival than Venice.
"What better backdrop could there be for a Roman-themed gala than our own Coliseum?" Following three courses and a live auction, conducted by NBC weatherman Fritz Coleman, the Friday gala moved to the Samuel Oschin Pavilion housing the Space Shuttle Endeavour for dancing and a dessert buffet.
