sluggish performance

Translations
вялая производительность
The team was criticized for their sluggish performance in the first half of the game.
Команда была раскритикована за вялую производительность в первой половине игры.
Definitions
A state of slow or inefficient functioning, often characterized by a lack of energy, responsiveness, or speed in completing tasks or processes.
Words
sluggish

adjective
медленный
performance

noun
производительность