My uploads/downloads to/from my slot are slow. It wasn't like this before.
This is usually caused by temporary routing changes or slowdowns between your home and server locations. A traceroute to your server can confirm slow routing. If you don't find a bottleneck, copy your traceroute to pastebin and come to IRC for assistance.
I need to do a speed test from my slot, but there's no browser.
You will not be able to use a speed test site. You can do this through SSH with the following command:
wget https://raw.githubusercontent.com/sivel/speedtest-cli/master/speedtest.py && chmod +x ./speedtest.py && ./speedtest.py Take a screenshot of your SSH window as proof.