Oh my lordy!! That's crazy, where are you? I found LTE was virtually always 20Mbps or greater but in city centres it was around your speed. I've never had a 3G speedtest that low on EE, it's virtually always 4Mbps+ apart from in the city centre at peak times.
On older phones/SIMs you still get the choices of T-Mobile or Orange, and I've seen low speeds such as that on Orange connections (234-33) but MUCH faster on T-Mobile (234-30). I read in PCPro that this autumn/winter EE are planning on switching off the former Orange network code (234-33) so everyone will use the former T-Mobile (234-30).
I assume the MBNL backbone that 3 and T-Mobile jointly built is better than the former France Telecom owned Orange network.
The only partial explanation for the ultra slow LTE is that only one cell site in your area has been upgraded so far and its struggling under the load
Don't forget your iPad will only support 1800mhz LTE, so if you want O2 or Voda you'll need a MiFi device or similar that supports 800mhz/2600mhz frequencies. Three should launch with 1800 and 800 support when they eventually do :-/
James BT Infinity 2
19/09/2012 - Sold 42/6 - Getting 46/8 - Sync 50 / 9 Mbps @ 470m approx
14 years of broadband (ntl: cable to BT FTTC) - Router: Asus RT-N66U - Modem: Huawei HG612 speedtest