Yes. For presets and factory-set scenes, the [S1] button is assigned to turn “scene delay” on/off, and the [S2] button is assigned to turn “scene reverb” on/off. Each time you press the button, the delay or reverb for all parts turns on/off.
If the delay sound remains even after you make the [S1] button go dark, it could be that delay is specified for the part’s MFX. Hold down the [SHIFT] button and turn the [MFX] knob to access the setting screen, and turn the Switch “OFF.”