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Opera slows when many tabs open

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giralua last edited by
iMac: 3.7 GHz 6-core Intel Core i5, Radeon Pro 580X 8GB, 16GB 1667MHz DDR4, Ventura 13.5.2

Many open tabs uses up the CPU time and the computer slows to a crawl until I dump the history, though the same number of tabs open in Chrome does not do that. I suspect I just have an incorrect setting. What should I change?
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