How fast is findByKey and View Links

Hello,
I'm developing an application in which I'll have two very populated View Objects (one with ~1000 and other with ~13000). My code will pick up one row in the first view object and it will search the related rows in the second view object.
I have some questions about this operation:
1. Should I implement it by calling findByKey in the second View Object or View Links between them?
2. How fast is findBykey? O(n) or something better? And about the View Link, does it execute a SQL query or does it solve by comparison between Java objects?
Thanks,
Eduardo

This reply from the community seems to say yes:
Ethernet = 1 Gbps
Wireless G, Wireless N (2.4 GHz) = 130 Mbps
Wireless N (5 GHz) = 300 Mbps
Wireless "g" is 54 Mbps, not 130 Mbps
This article from Gizmodo seems to say no:
http://gizmodo.com/5921456/apple-airport-express-2012-lightning-review-probably- the-best-router-ever
The article never even mentioned what type of download speed or plan was used, so the numbers are meaningless.
The AirPort Express has a 100 Mbps Ethernet WAN port, which would connect to a modem. Your download speed will depend on the Internet service plan that you have with your provider.
If you really do have a 100 Mbps download plan with your provider, you could probably expect about 85 Mbps because some speed is always lost in the  routing process.
What is the speed of your plan with your ISP?

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