Lag spikes are generally caused by interruptions to your network, and while they resolve quickly, could have a direct effect on your response time when gaming online. 

Factors that can contribute to ping spikes and packet loss are:

  • Broadband connection speed
  • Connection through Wi-Fi vs cable/ethernet connection
  • Network Congestion
  • Problems with Hardware
  • Apps running in the background
  • Quality of the connection delivered from the Internet Service Provider (ISP)
  • Inadequate Bandwidth
  • Geological Location

Read more about ping spikes and how you can optimise your connection here.