The phrase "a fraction of the performance" is correct and usable in written English.
It can be used to describe a small part or portion of a larger performance, often in contexts related to evaluations or comparisons.
Example: "The team delivered only a fraction of the performance we expected during the final presentation."
Alternatives: "a small part of the performance" or "a portion of the performance".
The results indicate that the NA battery performance is limited by the low electrolyte conductivity to a fraction of the performance of the VRFB.
Along with hundreds of other scientists, Weiler, who has worked on the project since 1979, cheered the launch of the Hubble telescope three years ago as the dawn of a new age in astronomy, only to discover that, due to a manufacturing defect in its primary mirror, the Hubble could deliver only a fraction of the performance its designers had intended.
Unlike the Academy Awards, Opera Awards for individuals are not linked to specific roles or productions, perhaps in recognition that it is difficult for any jury member to attend more than a fraction of the performances under consideration.
Owing to execution failures, companies realize just a fraction of the financial performance promised in their strategic plans.
As a result, these materials exhibit only a fraction of the mechanical performance of those manufactured through more traditional means.
The good news for hedge funds, at least for now, is that the cuts amount to only a fraction of the declines in performance.
It returned a verdict for plaintiffs for $5000.00 — only a fraction of the "cost of performance," but more than the total value of the farm even after the remedial work is done.
While those numbers are impressive, sampling even a fraction of the car's performance potential on speed-limited American roads could cost you your car, your keys and your friends.
As a result, the GPU will be under utilized and only reaches a fraction of the available peak performance.
The startup claims that its technology can replace competitors' sensors at a fraction of the cost with better performance.
According to Qualcomm the Snapdragon 8cx has twice the sustained performance at 7W and uses a fraction of the power at the same performance level.
