Sometimes a web project really must be configured for extreme performance, even if some of Bitrix Framework features are sacrificed (banner impression tracking, morphological search etc.). To find which features can be turned off, open "Settings > Performance > Performance Panel", click the "Bitrix" tab.

Open "Settings > Performance > Performance Panel", click the "Bitrix" tab. Read and follow the recommendations. Once you have done with the required adjustments, the tab name should change to "Bitrix (optimum)".