Rougex See also: https://www.1password.community/discussions/1password/1password-app-and-safari-extension-slow/156355 so there is definitely an issue with some of the base software though from my benchmarks above Safari itself degrades better than Orion with 1password installed.
ReneB I have this same problem. On Version 0.99.136.1-rc (WebKit 623.1.8.0.0) When I deactivate the 1Password extension, the browserbench.org 3.1 performance reaches a result of 35-38. With the extension, 13-16.
dulybookmarked Just to add some data—On a new M4 Pro 14", the Speedometer 3.1 test results in 21.2 with the 1Password extension enabled, and 44.5 with the extension disabled.
DBLClick One interesting test, !(https://) blocked Browserbench.org instead of disabling 1password in the Website settings for 1Password. Got the same performance boost as in disabling. 
goose I'm on I'm on 0.99.136.4-rc and the browser becomes profoundly slow and choppy when filling out some forms (e.g. on a store's checkout page) with the 1Password extension. And like the original poster said, disabling 1Password is a nonstarter.
ThinkingDes Still seeing a big performance issue on Version 0.99.138-beta (WebKit 623.1.8.0.0). BrowserBench on my M1 Mac goes from 30.3 down to 7.94. I did test this on Firefox too and Firefox only sees a 2x performance drop with 1Password enabled (rather than close to 4x as in Orion), so I think there is something uniquely slow about Orion's extension integration into WebKit that needs looking at.
techlichen ThinkingDes I agree. This issue is unfortunately the main reason why I can't currently use Orion as a main browser, no matter how much I would love to (I'm using Firefox right now).
ReneB Since this degradation is so impactful that it kills performance & Macbook battery, I have shifted back to using Safari as the main daily driver. Happy to use KAGI, but ORION fell behind :-(
rolldav ReneB I switched to Brave. Orion is no longer usable in its current state. Between that and the script and PDF problem, I can no longer use it professionally, only for personal testing. This is frustrating, because I am a paying user. I am happy to support the project, but this is suicide.
mrobinsn This remains to be my top frustration w/ Orion. Latest test Orion 0.99.138-beta (WebKit 623.1.8.0.0) on MBP M1 Max 1PW Extension v8.11.18.36 Browserbench 3.1 score: Without 1PW extension: 35.1 +/- 1.1 With 1PW extension: 14.1 +/- 4.8 Result 60% performance reduction 4x increase in variance (which explains the jittery feeling I'm seeing) Anecdote: with 27 tabs open it takes 2-3s to switch tabs Is anyone from the Orion team actively looking into this? I love the Kagi / Orion mission and I don't regret supporting it, but this should be a priority fix ahead of any new features IMO.
Rougex Unfortunately, Orion 1.0.0 does not improve this performance with 1Password. In fact, it is slightly worse. With no extensions (using the same H/W as when I made the OP, now with MacOS 26.0.1): With 1password installed and enabled:
DiljotG564 I’m experiencing these same issues on the latest release of Orion v1.0 I’m guessing it’s because the 1Password extension is the Chrome variant and not the Safari variant.
