Is there such a thing as redirectless tracker?
What I mean is, all traffic goes straight to the lander on some high speed CDN and it has JavaScript that interacts with a tracker asynchronously.
In this case, even if the tracker is slow or screwed up, lander will still be displayed and pass traffic to the offer, just stats won't be available.
It's not an ideal setup.
1. Relying on Javascript puts your entire tracking functionality in the hands of a user's browser, so you will lose data from user-side problems and someone like me with NoScript will not get tracked at all.
2. You sacrifice a lot of control over redirection and control of the click-flow. You won't be able to control or change user destination at your discretion and based on rules e.g. geo-based and device-based redirection.
You could of course engineer this with JS and/or use iFrames to dynamically serve content, but at this point you will need to be doing interactions with others servers, databases, detection libraries, etc. and you have thrown away your initial premise of wanting to minimise load times by not having redirection by an initial click-tracking server.