Simple Set of Performance Related Vector Line Icons. Contains such Icons as Power, Speed, Graph, Sprint, Boost, Brain, Gain and more. Editable Stroke. 48x48 Pixel Perfect. Shutterstock Image - Simple Set of Performance Related Vector Line Icons. Contains such Icons as Power, Speed, Graph, Sprint, Boost, Brain, Gain and more. Editable Stroke. 48x48 Pixel Perfect. - ID: 428770585