If MetaTrader 4 (MT4) is responding slowly, try refreshing its server connection and checking your internet connection. A large volume of data in the terminal may also affect its performance.
Steps to fix MT4 lagging
- In MT4, click the connection status indicator in the bottom-right corner.
Select Rescan Servers to refresh the server list.
- If MT4 is still lagging, switch to a different internet connection and check whether performance improves.

