"that would boost" is correct and usable in written English.
You can use it to suggest an improvement or increase in something. For example: "Introducing new technology to the office would boost productivity."
One thing that would boost Joplin's 21st-century profile is a feature film.
Mao Zedong pushed hard for a new programme that would boost China's economy at a stroke.
But the can with the higher recycled content could be "a differentiator" that would boost supermarket sales, Mr. Martens said.
A drug that would kill all bacteria and another that would boost a person's immune system to withstand any pathogen.
And there are signs that would boost the ego of any Francophile feline: "Attention -- Chat F ce".
The M5S wants legislation to eliminate corruption, clean up the environment and broaden access to the internet all measures that would boost growth.
At a conference held at Harvard Business School in March a panoply of corporate bigwigs complained about Congress's unwillingness to invest in things that would boost competitiveness.
His promise to sell more cars was not accompanied by any announcements of the job cuts or plant closures that would boost the struggling French carmaker's profitability.
Obama decided to help the companies if they were willing to make the tough choices that would boost long-term competitiveness.
Nigeria's federal parliament has for years refused to approve an oil-industry bill that would boost investment in oilfields and hence production.
The dancers themselves worried about money; their base salaries were small, and they depended on Filin's favor to be given the serious roles that would boost their income.
