Your recursive nameserver should also cache any resolved domains, so a small delay could happen only if you try to access for the first time some site that you have never visited in the recent past.
In practice, I have used for decades only my own recursive nameservers and I have never perceived any slowness in comparison with computers that were using the ISP or Google or corporate nameservers. More like the opposite, presumably because my own cache always has the content that I access frequently.
In practice, I have used for decades only my own recursive nameservers and I have never perceived any slowness in comparison with computers that were using the ISP or Google or corporate nameservers. More like the opposite, presumably because my own cache always has the content that I access frequently.