Guild Wars 2

Just got my necro to lv80, geared up like this:

http://gw2skills.net/editor/?fQAQNBmODbkRrSPTTUjfPBMpw7xjUMcxUPKH9zB-jUyAoLBZKCAhBi+AnALiGbZsIasKGM9JRUt3oIa1SBwkwI-w

Test for 2 days, survival is good, however, my damage is extreme low, well of suffering only did 300-400 per pulse, the best hit is 900+ (maybe on some under lvl char), never seen any 1k+ number. I have seen plenty of power-well necro videos doing some nice damage.
Is this normal ??? What’s wrong with my build?

http://gw2skills.net/editor/?fQAQNBmODbkRrSPTTUjfPBMpw7xjUMcxUPKH9zB-jUBBoLCypmFRjtMqIas6aYKXER1SBwkyI-w

Few stats were swapped,especially on the jewels resulted in low power. Added another food and use different sigils – either 2 energy with stamina/restoration and extra weapon for the Bloodlust buff