What is the maximum concurrent request for each app connected to demo.ctraderapi.com?

here：

https://connect.spotware.com/docs/open_api_2/proxy_cloud_v2

Open API 2.0 utilizes Spotware’s Proxy Cloud to ensure fast and smooth operation of your application.

Currently the following proxies are available for Open API 2.0.

For accessing Demo accounts

• demo.ctraderapi.com:5035

For accessing Live accounts

• live.ctraderapi.com:5035

The above proxies are subject to the following limitations

• 50 requests per second per application.
• 25 concurrent connections per application.

If your application requires higher limits than the above, please contact us at connect@spotware.com

But I send a request every 300 milliseconds, the server often returns REQUEST_FREQUENCY_EXCEEDED。

In this case, let alone 50, 5 requests per second are not available.