The phrase "a more efficient means" is correct and usable in written English.
It can be used when discussing methods or ways to achieve something more effectively or with better results.
Example: "We are looking for a more efficient means to streamline our production process."
Alternatives: "a more effective method" or "a better way".
In a recent review of photosynthesis Bryant and Frigaard commented that the reaction centers employed by photosynthetic bacteria are a more efficient means of obtaining energy than rhodopsin-based phototrophy, due to both the efficiency of converting photon energy to ATP and the presence of large amounts of chromophore in a single unit of reaction center [ 55].
"I believe in this medium as a more efficient means of communicating social and political messages," says Bogost.
The primary argument is that these would provide a more efficient means of eradicating severe hardship, suffering, or starvation.
According to CLT, studying worked examples is a more efficient means of training complex skills than solving conventional problems.
It provides a more efficient means to evaluate the buckling load of VAT laminates, compared with other numerical solutions.
In Berlin I learned that often there's a more efficient means of transport than the car or the underground: the bike.
They call it a far more efficient means of communication than a conversation, a telephone call or an e-mail message.
If you decide you want a faster, more efficient means of composting, try using a composting bin and introduce your own vermicompost system.
Recursive algorithms provide a significantly more efficient means for reconstructing sensory stimuli by utilizing past estimates to minimize the computational expense.
That simply by sequencing random fragments from the genome, shoving it into a computer, and devising the appropriate algorithms to assemble them, we would have a remarkably more efficient means of assembling genomes.
Mitchell combined his new fracking formula with horizontal-drilling techniques that had been developed offshore; once you bored deep enough to reach a deposit, you could direct the bit into the oil- or gas-bearing seam, a far more efficient means of recovery.
