I personally like the fact that magic takes a lot of work to make powerful.
Well, with and Intelligence of 95 and 12 levels of Blue Way, Freeze still pretty much sucks.
I assume you are comparing the damage you do with magic to that which you do with a sword.
Consider what you are trying to do using flame burst; with the power of your mind, you are forming a fireball in your hand and throwing it at your enemy. With freeze you are cooling down every part of a creature so that their temperature drops dramatically. This is not some thing to be tried upon a whim, it is a life long journey to perfection requiring both strength of mind and a strong focus of character.
Also consider this:
With a sword, even with very little training you can kill a man. With more training, yes you will become better at killing men, but try taking on an army of men or a herd of large beasts. One sword, no matter how skilled you are with it, will not be of much use.
However, take red magic. Without much training fire magic is little more use than a flaming torch (which requires no training at all to use) however with a dedication to training in this art, fire is at your command. With fire obeying your will what difference does it make if you are against one man or one hundred the outcome is the same, the only change is the number of coffins.
Currently with a will of 93 and a skill in the red way of 2 I am no more than an inexperienced conjurer. Yes it would be easier to skin a few rats with a broadsword each day and make enough money to buy bread and ale. But I wish to become a sorcerer, and whilst training in magic is a sacrifice, everything in life is like that and so I do not see the problem.