A lot of Tor nodes and endpoints are fairly small in terms of capacity and throughput. Streaming lots of porn vids through them eats up a lot of bandwidth compared to, say, writing emails or browsing darknet markets or reading about Tienanmen Square or something.

Tor has a place, but in most countries regular internet porn isn't seriously illegal. Save the limited Tor bandwidth for people that actually need protection, like gays in the middle east, victims of repressive regimes, etc.

Get a regular VPN, user-agent switcher, etc. for your pronz.