Incredibly slow FTP-speeds.

[Switch123456789]

Describe the bug

• My PC is connected with 2500 Mbit/s (LAN) and my phone is connected with 1152 Mbit/s (WLAN 6GHz) to my router (FRITZ!Box 5690 Pro). With other apps I can transfer with over 100 MB/s, however with Amaze it is as low as 5 MB/s on average. It's taking me several hours to copy a few GB.

Steps to reproduce the behavior:

1. Start FTP Server
2. Transfer a file to the phone

Expected behavior

• At least somewhat usable speeds while transferring files.

Smartphone

• Device: [Fairphone 6]
• OS: [Android 16]
• Rooted: [Yes]
• Version: [e.g. 3.11.2]

[Switch123456789]

I think I figured what the issue is. Android 16 seems to have new JobScheduler quota optimizations, this throttles the speed. So disabling battery-optimizations for the Amaze-app brings back the full speed!

I will do a bit more testing and post if I find out more.

[EmmanuelMess]

Thank you for your testing. I'm also pinging @TranceLove to the issue.

[TranceLove]

With Android's documentation I think the claim is legit.

And to fix this, perhaps the easiest way is to prompt user to disable battery optimizations at all, with the ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS intent.