sorry to bump this old thread, but i've got a related question.
However, you should not add all subscriptions you can get — each filter subscription contains filters that will in some cases block something that is not an advertisement, this is unavoidable. Usually, this will never be an issue for you, but you will be far more likely to hit this problem if you add too many filter subscriptions.
i understand that having too many filters can cause slowdown. however, if i disable/uncheck a few subscriptions, will it not cause as much slowdown?
or do i have to completely delete the filter subscription from ABP?