Disclosed is an electronic apparatus. The electronic apparatus includes: a communication interface comprising communication circuitry, a display, a memory configured to store at least one instruction, and one or more processors connected to the communication interface, the display, and the memory and configured to control the electronic apparatus, wherein the one or more processors, by executing the at least one instruction, may be configured to: control the display to display content streamed from an external server through the communication interface, based on receiving delay characteristic information corresponding to the streamed content from the external server, identify a critical value of a stream buffer in which the streamed content is stored based on the delay characteristic information, and control at least one of a decoding speed of the content or output speed of the display based on the critical value of the stream buffer and a state of the stream buffer.