Pkmn White Team Vs online players

I cant seem to beat anyone online with my team no matter who I use. Can someone tell if there is something wrong with my team. This is a combo of Plat, heartgold, and White

Garchomp lv 95
Feraligator lv 100
Espeon 53
Raichu 91
Tyranitar 76
Jolteon 90
Blastoise 96
Haxorus 83
Infernape 93

Obviously these levels get dropped down to 50 online, but why I cant see I cant beat these people online. I know speed is an issue with this team. What other issues can people see based on this?

I merged your thread with the Simple Q&A Thread, since it was incomplete. However, you may post a new thread with your team, but the rules require you to post the movesets, abilities, natures, EVs, and held items of each Pokémon. This is a good resource for movesets. Additionally, this article explains the basics of competitive battling, such as EVs and natures.