The phrase "a much higher performance" is correct and usable in written English.
It can be used when comparing the performance levels of different systems, products, or processes, indicating a significant improvement.
Example: "The new software update delivers a much higher performance than the previous version, allowing for faster processing times."
Alternatives: "significantly better performance" or "considerably improved performance".
The mixed-host blue EML exhibited a much higher performance compared to the MCP host.
We show that for the same requested by the primary system, OSSS can achieve a much higher performance for the secondary system than AF-SC.
Concerning the building time of the data structures, quadtree had a much higher performance than the other ones, as shown in Fig. 7.
In the alkaline media, the fuel cell yields a much higher performance than the acidic case, and fuel transfer limitation and cathode potential reversal occur at combined low flow rate and high current density.
If a meta-predictor could combine the correct predictions from each PPP, it would achieve a much higher performance.
A general adaptation to singing using a global transform was found to provide a system with much higher performance in recognizing sung phonemes than the nonadapted one.
The company will also endow the MG F, a midengine roadster, with much higher performance.
In our case, we will be doing a lot of engineering work over the summer to install an active surface system, which will allow us to come back in the autumn with a telescope that has much higher performance.
In agreement with these studies, we found in both the monkey and humans a similar trend towards much higher performance with full-face and close-up views of faces with respect to profile and full-body views.
The parallel implementation and low-level coding of the ENO scheme on the Thinking Machines CM-5 results in much higher performance than is possible on a standard serial or vector machine.
In general, for a wide range of operating conditions the EEV system shows much higher performance as compared with the capillary tube system.
