Android Pie 9.0 DownloadManager and call API response are slow

I add

base-config cleartextTrafficPermitted="true"

but it is not resolved. When i run the device with android # 9.0 pie, it works best. But android 9.0, i can't resolve

Link before:

Download Manger not working in Android Pie 9.0 NetworkSecurityConfig: No Network Security Config specified, using platform default

DownloadManager requests delayed on Android Pie