High CPU usage when selecting text and scrolling on Ubuntu

I'm running Zotero 6.0.22 on Ubuntu 22.04. The machine is a Lenovo Thinkpad with Nvidia graphics (driver version 525.78.01). I've noticed that when I am selecting text, the CPU usage shoots up and the cpu temperature goes up to 80C. Once selected, there is no increase in CPU usage or temperature. Similarly scrolling through a PDF also causes an increase in CPU usage and temperature.

I also have Zotero on a mac (version 6.0.22-beta.3+d8f7626dd), but none of the same CPU usage spikes or temperature increases when scrolling and selecting text.
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