时间：2020-08-14 17:06:04 及之后一小段时间

接口：cgi-bin/message/custom/send

php调用后提示：cURL error 28: Operation timed out after 5001 milliseconds with 0 out of -1 bytes received (see https://curl.haxx.se/libcurl/c/libcurl-errors.html)

该错误表明接口响应超时（设置的超时时间为30s）：

CURLE_OPERATION_TIMEDOUT (28) Operation timeout. The specified time-out period was reached according to the conditions.

是否该段时间公众号的负载高导致无法及时处理请求？