For Ublock users :
1. Which is the first filters that UBO prioritizes, static filters or dynamic filters (under My filters and My Rules) ?
2. What's best for browser performances (speed connection), no (or just a fewer) static filters or no (a just a fewer) dynamic filters ?
From what I understand, there are two types of filters, network filters and cosmetic filters. Network filters are faster, as they usually block the main source responsible for the ads and trackers. But all ads can't be removed through simply blocking the host and that's where cosmetic filters are required to block ads, tracker scripts, remove empty ad placeholder, cookie notice, etc.
Filters like EasyList, Adguard Base they contain both network and cosmetic filters in them which are required for a better user experience. Filters like, "Peter Lowe’s Ad and tracking server list" are network filters only and something like "Fanboy’s Annoyance" usually contains cosmetic filters only.
Having multiple filter lists containing duplicate network filters eg: "Peter Lowe's list and 1host (mini)" shouldn't hamper performance because duplicates are ignored by adblockers but having multiple cosmetic filters eg: "Fanboy's Annoyance and Adguard Annoyance" containing similar and identical rules would hamper performance because cosmetic filters won't be identical always and can be written in various ways. Two different types of rules can have the same purpose of removing the same thing eg: Cookie notice, so your adblocker will have to do some extra work checking both set of rules. Even though the performance impact is not really/barely noticeable at least in uBlock Origin which is the fastest adblocker, it's better to avoid multiple cosmetic filters which have the same purpose.
Now for what I'm doing since last month is, I got rid of the Peter Lowe's list on my uBO and added 1host (mini) because these are network filters and 1host (mini) contains everything Peter Lowe's list has and more, so more ads and tracker domains are now blocked by this list. But I must say this is not necessary for everyone. I also use Adguard DNS which can take care of first party trackers so not using Frogeye's tracker list either.
I also got rid of Adguard Annoyance and I don't care about cookies in favor of "Fanboy's Annoyance" only as the later already does what the previous two do, so less cosmetic and duplicate filters to worry about for uBO.
One more thing, it is recommended to use EasyList, Fanboy's related lists in uBO and Adguard related lists in Adguard as uBO can't parse all the rules from Adguard filters and vice versa.
Last but not least, as I said in my previous comment, if I see any missed ad, empty ad placeholders, false positives then I report it to the filter list maintainers so not only me but also thousands of users using those filters are benefitted from my report. So, if anyone have the time and patience please consider doing the same if possible when you come across those to help us all.