With all of the processor flaw mitigations, we saw the Lake series effectively lose all of their gains, however slim, between each generation.
Rocket Lake, the newest, still gets a 2 to 16% performance hit (depending on task) with mitigations on.
https://www.phoronix.com/scan.php?page=article&item=spectre-...
At this point, Intel is behind where they started with the Core line.
