SSMS is very slow with SQL Prompt installed SSMS is very slow with SQL Prompt installed

SSMS is very slow with SQL Prompt installed

To isolate the problem, please uninstall SQL Prompt and test if SSMS is still slow. If so, reinstall SQL Prompt. If the problem persists with the latest version (Help > Check for updates), please try the following steps:

  • Clear the cache by disabling SQL Prompt > Enable Suggestions and re-enable it again.
  • Set the snippets folder to a local path in case there is a network issue reaching the remote path that has been set up previously.
  • Disable Code Analysis function (SQL Prompt > uncheck “Enable Code Analysis”) and test again; if the problem disappears, it suggests that "Code Analysis" is the culprit, so please contact Support.
  • Disable the built-in intellisense under Options > Text Editor > Transact-SQL > Intellisense.
  • Go to SQL Prompt > Options, click on Export to save your settings, and then try a "Restore all defaults".
  • Disable the auto-refresh experimental feature (SQL Prompt > Options > Labs > Experimental features).
  • If your SSMS version is below 17.3, you can raise the amount of RAM available for SSMS by using the Large Address Aware utility on ssms.exe (see
  • If the slowness occurs on startup, try disabling Tab History (SQL Prompt > Options > Tabs > History > Enable Tab History).

Note: If it's Object Explorer that's slow, this is more likely caused by SQL Source Control. Please see here for troubleshooting steps.

If the problem persists, enable verbose logging, reproduce the issue, log a ticket with Support and attach the log file for further investigation.