服务器换云数据库很慢

import tencentcloud.common.credentials as credentials
import tencentcloud.common.profile.client_profile as client_profile
import tencentcloud.common.profile.http_profile as http_profile
import tencentcloud.dts.v20180330.dts_client as dts_client
from tencentcloud.dts.v20180330 import models

# 设置腾讯云API密钥
cred = credentials.Credential("your_secret_id", "your_secret_key")
httpProfile = http_profile.HttpProfile()
httpProfile.endpoint = "dts.tencentcloudapi.com"

clientProfile = client_profile.ClientProfile()
clientProfile.httpProfile = httpProfile
client = dts_client.DtsClient(cred, "ap-guangzhou", clientProfile)

# 创建迁移任务
req = models.CreateMigrateJobRequest()
params = {
    "JobName": "example_job",
    "SrcDatabaseType": "mysql",
    "SrcAccessType": "extranet",
    "SrcInfo": {
        "InstanceID": "src_instance_id",
        "Region": "ap-guangzhou"
    },
    "DstDatabaseType": "mysql",
    "DstAccessType": "cdb",
    "DstInfo": {
        "InstanceID": "dst_instance_id",
        "Region": "ap-guangzhou"
    }
}
req.from_json_string(params)

resp = client.CreateMigrateJob(req)
print(resp.to_json_string(indent=2))