Give that man an award for stating the bleeding obvious OF course it wont perform as good as something lighter. Thats like saying a HGV Lorry doesnt handle as well as a Lotus Exige
I've had both. Well a T-Maxx 2.5 and a Savage .21.
I like both of them, The T-Maxx has cheap spares and excellent (the best in R/C) aftermarket support. I think its a little weak, And is quite a dated design, I feel stock it has alot of areas that require upgrade.
The Savage was bullet proof for me, But was an absolute pig to work on, Seriously, Those TVP's just dont work for wrenching. IF this is a first R/C ID find working on a SAvage little daunting. However, Of the 2 you chose, I think its the better truck, unless your into spending hundreds on customising.
However, ID buy a second hand Revo, its light years head of any of them.