Timing control of server sending data to gateway, ClassB

After we conducted a certain amount of tests (200 times), we found that although the ping slot time was 4s, the server still needed 5-8s when sending data to the gateway. Shouldn’t it be sent immediately after waiting for slot?thank you

See this thread: https://forum.loraserver.io/t/downlink-class-b-either-not-send-or-not-received/4573

This is what you really want to read: https://forum.loraserver.io/t/how-to-shorten-the-classbschedulemargin/3370