Set up please help

[lund8ic]

Hi so I have multiple questions.
1. I play a lot of league of legends and I find that I am getting a click lag if that makes sense... click. ....... then action. I didn't have this problem with my MacBook pro retina and this is a top of the range pc.
2. I'm currently playing through a tv screen using an hdmi cable. Using vsync helps but there is still a very very very small amount of click lag. Is my screen my problem.
3. Unrelated to click lag does using a standard issue router from a internet company as opposed to me buying a nicer router make a difference if I only play through ethernet.
4. On my computer when booting up sometimes not all the time I get a overclock error and it requires me to go to bios settings. Could I have built my pc incorrectly?

Lots of questions I know but your help will be greatly appreciated.
Thanks in advance

 

[Carnaxus]

Your click lag could be as simple as the TV not having a fast enough response time.

As to your router question, unless you've got gigabit service but the router is only 10/100 then no, it shouldn't make much of a difference when you're running wired.

The overclocking error...have you overclocked your computer? If so, check the settings you used; if not, contact the motherboard's manufacturer.

 

[hang-the-9]

As above, TVs have quite a bit of input lag.