[tor-relays] CPU requirement gone up?

(Linux 6.8.0-90-ge...) Tor 0.4.8.21 (recommended) I used spin up Webtunnels on very cheap VPS, bandwidth and uptime being my main consideration. But in recent days CPU is 99% even at quiet sites with under 50 outgoing connections. This is new. It would run at 30-50% before. Gerry