I'm currently taking a class covering the theory of topological vector spaces using the book Topological Vector Spaces, Distributions, and Kernels by Francois Treves. I find the subject to be very interesting, but its also been quite difficult for me to understand some of the material or do some of the exercises. The course aims to cover most of the first part of Treves book, basically up to Frechet spaces or LF spaces.
Are there any other books that cover roughly the same material as in Treves book that might be a bit easier to go over? I've already checked out other books by H.H. Schaefer and M. P. Wolff, G. Kothe, and Bourbaki, but I've found all these books to be more difficult than the Treves book.
My main interests in topological vector spaces are on the theory of distributions, functional analysis, and applications to partial differential equations.
Thanks in advance.