The phrase "a much lower efficiency" is correct and usable in written English.
It can be used when comparing the efficiency of two or more processes, systems, or methods, indicating that one is significantly less efficient than the others.
Example: "The new system has a much lower efficiency compared to the previous model, resulting in increased operational costs."
Alternatives: "significantly reduced efficiency" or "considerably lower efficiency".
The world body does vaccinate its troops, but the researchers found that vaccines alone have a much lower efficiency rate in counteracting the cholera bacterium.
In addition, the patent was found to have a much lower efficiency than what was claimed by the inventor.
When incorporated in triglycerides, lipolysis by pancreatic lipase occurs at a much lower efficiency than for oleic acid triglycerides (Cahoon et al. 1994; Heimerma. Whet al. 1973).
A much lower efficiency (i.e. 30%) was obtained using the undivided cell, because, under these conditions, electrogenerated hydrogen peroxide was decomposed by anodic oxidation on Pt electrode.
The decrease in Brønsted acidity significantly reduced the activity of the zeolite for dehydrating methanol leading to a much lower efficiency of the corresponding hybrids for DME synthesis at typical STD conditions as compared to the catalyst obtained by simple mixture of pre-pelletized components.
However, it functions at a much lower efficiency than EMCV IRES or CrPV IRES.
However, MRP3 transports folic acid with a much-lower efficiency than the reduced tetrahydrofolate form (30).
Hence, even though the smaller thermodynamic driving force for PET may play a role in the much lower efficiency of the PET process observed with amines, it does not seem convincing as the sole explanation.
Previous publications described meso-substituted cationic porphyrin that were stimulated in the visible wavelength [25] [29], [34], leading to a limited penetration (<1mm) depth and much lower efficiency of the PDT.
Oligonucleotide-based gene modification is a site specific genome editing strategy utilizing triplex-forming oligonucleotide or single-stranded oligodeoxynucleotide and has been shown to successfully mediate modification of genomic DNA in mammalian cells in a precise sequence-specific manner [ 9], but with much lower efficiency.
