Just tested on my Win10 x86 Machine: (Atom 1.33Mhz, 1Gb RAM, Flash storage)
Average US server load is roughly 1550, EU ~400
Server->Character List
US Servers: ~2-7s / Ranging from 0-40+ alts each
EU Server: ~2s / 0 alts
Holy difference batman!
Besides the basic specs, the only difference is that the character file doesn't include the spacing I've done on my normal machine (some pages have character gaps), but this has been going on longer than I've been organizing the alt list.