Assuming you have tried everything above, here's a trick I used in my hostel to cope up with slow connections. External network cards These work like a charm and are very tiny so that you can carry 10s of them. The trick is to use youyour NICs to connect to every network you can and then use speedify to connect all together and enjoy your increased speed. If you are confused what to buy just look for any 802.11n network adapters. And use a usbUSB extension port to to extend your USB ports. In just 15$ I pentupled my avg speed by connecting with 4 extra networks. Hope this helps. The other one is a dirty trick and involves some misdoings on your part. As you are in a hotel the default password for the wifiWiFi router remains the actual password for that and a simple google search would reveal their access ipIP address and default password.
- Connect to the WiFi.
- Type in the IP address and then the password in the dialog box.
- You are now on the admin page.
Here on you can change the password of WiFi under the wireless security. Apply bandwidth control protocols for devices and even reset the their router with your own tweaked router firmware.
Netcut Mess up the ARP table of your router with netcut, just download it, install it and run it. it's very simple and also protects your from ARP attacks.
Remember the last two methods may be considered illegal. Try to to talk to the management first if you can. Happy traveling.