As an example: you cannot expect a G series Linksys router to outgun an N series TP-Link router, just because the former was manufactured by Linksys. Point is that don't buy cheap models of any brand, if you want performance.
TP-Link offers a huge variety of hardware at affordable prices. Of-couse, the best of TP-Link products are expensive too.
What people usually do is invest in cheapest models and then complain about lack of performance.
However, TP-Link is more affordable as usual. TL-WA830RE is great choice.