squarespace hosting elsewhere will it be slower?

Silly newbie question I guess.

But I already bought a domain name. I am happy to host it at NameCheap or JustHost

So it then 'points' to the squarespace page

BUT... it seems to me I then have added an extra 'element' into the mixture. Now both NameCheap and Squarespace need to be 'working' - I mean will it go 'slower'

For instance I may pay an extra $1 a month for NameCheap to use a UK Datacentre [because the people using the site will mostly be in the UK] but surely any gains are lost by NameCheap 'pointing' to squarespace who may be run out of the US?

Am I stupid to be paying extra to get NameCheap to host the site/s?

I just don't like Squarespace charging me $20 a year for the domain name... and to save that $10 I am spending $45 a year extra

What advantage do I have by being on NameCheap stella plan - will any gains be lost by everything being pointed to squarespace - and so I'm just going to always have squarespace service - but with the extra step of going via NameCheaps datacentre?

As I said I am asking a stupid newbie question... so thanks for any help/abuse... all is appreciated xx

I don't think any latency will be noticible if it even exists at all. A domain points your internet provider to your destinaton it doesn't load anythng unless that is where the site is hosted along with your domain.

Squrespace domains are hosted with Tucows so you have not in actuallity added an extra element, just changed it to a different one. 

Thanks so much for the answer

I have a follow up question...

I live in the UK, most/all my customers are in the UK.

That would suggest I should choose NameCheap's UK data centre [they have three, USA, Europe and the UK]

It is a whole $1 a month more expensive. Which is maybe not much, but it is a large part of the price.

BUT... if I understand your answer correctly - it maybe doesn't matter. Because Namecheap doesn't 'load anything' - so any advantage of having the UK data centre is mitigated by squarespace servers being [I guess] in the US?

So, would it make sense to just get the cheaper US Namecheap data centre option... as there is no real difference. I mean if it improved the customers experience by loading up quicker - I think the extra dollar a month would be worth it.

Thanks again for any help

I don't see any difference unless one offers a .xxx the other doesn't like .uk or something else you may want.