Will mobile users receive short messages slowly?

You didn't make your question clear. Now I'll give you a concrete analysis:

1. If the message was sent by the other party, it was sent a long time ago and you received it very late. If it is not a holiday, I suggest you provide the specific sending time, your specific receiving time, sending number, etc. Go to the local customer service 10086 and deal with it as a "business use" problem (of course, you don't need to know much about classification, but the local customer service will definitely accept your question, provided that,

2. If the other party sends you a message, you can receive it quickly, but it will be slow to open it in your mobile phone. This has nothing to do with local operators, but with mobile phones in Otawa. For example, when N73 sends SMS and MMS, there will be a certain reaction time. You can wait for Nokia to launch an upgraded system before upgrading (but generally it will not change much, and there will still be some slowdown).

Please analyze which of the above analysis is your problem, and then deal with your problem according to the relevant treatment methods I provided.

I hope your problem will be solved soon.