Pi-hole is slow or sometimes doesn't even get DNS requests

Help
3

Thanks for the quick reply JFB, so 192.168.1.8 is my PC.
even in my PC's network adaptor, it says that my DNS is raspberry pi that's running Pi-hole (192.168.1.9)

I did the commands to create a fresh database

and ran the different nslookup's, here is the results:

C:\WINDOWS\system32>nslookup pi.hole
DNS request timed out.
    timeout was 2 seconds.
Server:  UnKnown
Address:  192.168.1.9

DNS request timed out.
    timeout was 2 seconds.
Name:    pi.hole
Addresses:  fe80::f196:2503:f70e:1815
          192.168.1.9

C:\WINDOWS\system32>nslookup flurry.com
Server:  pi.hole
Address:  192.168.1.9

Name:    flurry.com
Addresses:  ::
          0.0.0.0

C:\WINDOWS\system32>nslookup flurry.com 192.168.1.9
Server:  pi.hole
Address:  192.168.1.9

Name:    flurry.com
Addresses:  ::
          0.0.0.0

The time-out you saw there happens intermittently. An this is also the time that the DNS request won't show up on the tail log.

Side note, I noticed that my Raspberry Pi, aside from eth0 connection also has a lo connection. this lo is just a loopback to 127.0.0.1 no idea what its doing or what its there for but could that be a reason as to why the whole thing is running so slow?