LSC + “Asset CleanUp Pro: Page Speed Booster” faster than LSC only

what was the PSI warning you got with LSCWP alone ? and also please provide the report number , you can get it in toolbox -> report -> click “send to LiteSpeed”

Report number:?TRYIJWTK

I used webpagetest.org rather than Google page speed insights.

With LSC only: https://www.webpagetest.org/result/230917_AiDcAW_5WB/

With LSC & Asset CleanUp Pro: Page Speed Booster: https://www.webpagetest.org/result/230917_AiDc1E_5XB/

from report , are you using LSCWP without any configuration , but only the default setting ? because I see almost everything is disabled , except object cache and html minify

the default setting literally applies no optimization at all

you can try go to Preset page , apply some pre-configurated setting, it should help