The phrase 'obstacle to efficiency' is correct and usable in written English.
You can use it when referring to anything that negatively affects the efficiency of a process or system. For example, "Poorly designed software was an obstacle to efficiency in the office."
The act defines a burden as a financial cost, an administrative inconvenience, an obstacle to efficiency, productivity or profitability, or a sanction, criminal or otherwise, that affects the carrying on of any lawful activity.
It is fashionable to argue that rights at work can be an unnecessary obstacle to efficiency, an impediment in an age of non-hierarchical company structures where creativity and initiative are valued more highly than suits, ties and punctuality.
Still, the obstacles to efficiency are many.
As a result, services that are managed both by the government and the Global Fund are often badly coordinated and inefficiently managed, with duplication of tasks—including reporting, monitoring and evaluation, and funding/disbursement mechanisms representing significant obstacles to efficiency [ 12, 14].
Kenneth R. Feinberg, who administers the claims facility, said such cases, "where the lawyer claims to represent the claimant and the claimant denies it," had created "an obstacle to the efficiency and speed in getting the checks out".
A major obstacle to probing the efficiency and consequences of genome editing is that no existing method enables the frequency of different editing events to be simultaneously measured across a cell population at any endogenous genomic locus.
The unstable coverage rate observed is an obstacle to evaluating the efficiency of the predicted and known primers at all sub-levels.
On the other hand, clientelistic relations have been increasingly denounced as obstacles to the efficiency of these institutions and to the respect of democratic values.
The authors analyze obstacles to economic efficiency in EU climate policy and discuss future perspectives of emissions trading within the EU.
The recombination of carriers in the nanostructures is prevented by ultra-fast charge transfer to the host, thereby removing the main obstacle to achieve high conversion efficiency.
Super-knock is the main obstacle to improve power density and engine efficiency of modern gasoline engines.
