There are several reasons why your Smart sliding gate may be running slow or be in lost mode:

Low Battery: If the gate's battery is low, it can go into a low-power state and run very slowly. To resolve this, check the power supply voltage or replace the battery.

Power Cut: If there is a power outage and the gate doesn't have access to mains power, it can go into a low-power mode and run slow. If you still want the gate to open or close quickly during power cuts, you can adjust the power-saving mode speed to the maximum setting.

Manual Release Disengagement: When the gate is set to manual mode, it can enter a low-power state and run slowly. To address this, switch the gate back to its normal operating mode, and it should come out of the slow mode.

Collision on End Stop: If the gate collides with an end stop, it can enter a low-power state and run slow. In this case, please fix the gate's end stop to ensure smooth operation.

Here is a summary of the solutions:

• Check power supply voltage or replace the battery if the gate is running slow due to low battery.
• Adjust the power-saving mode speed to the maximum setting if the gate is running slow during power cuts but you want faster operation.
• Run the gate to recognize the closed and open end stops, which should take it out of the slow mode.
• Fix the gate's end stop if there has been a collision causing it to run slow.
• Increase the crawl/lost speed by going to the menu, selecting "Run Profile," and enabling the appropriate setting if the gate is running slow in one direction.

Please follow these steps to address the issue effectively.