Just replaced a pix with a asa5520 this last weekend. Now remote desktop connections from outside in are now much slower to draw the screen, if you are in a email and you scroll down, it takes longer to draw the screen than before. Its something I noticed, then my boss then several VPN users.
Whats strange is that I personally dont use the the PIX or now the ASA for VPN. I use openvpn and it has the same "slower" feel to it when remoted into a desktop on our network from outside.
Generic bandwidth tests are actually faster across the board with the ASA, what are some things to check?