You honestly have no idea what you’re talking about do you? Dhalsim has complete control of the lower horizontal field because of his fireballs and long reaching normals. This basically forces Fei long to jump, and Dhalsim has godly anti-air control, with an attack for literally every situation. So Fei long spends all his time trying to get in close, but even if he does get in close Dhalsim still has a beasty up close game. Dhalsim’s up close normals come out fast and have good priority which allows him to beat out most of Fei’s attacks. A simple block chain can widen the gap between them. Don’t forget that Dhalsim also has a very good rusdown game of his own with his close normals, drill kicks, and flying headbutt. He also has the noogie trap and his kick throw both of which he can easily tick into. And if all else fails to widen the gap back up, Dhalsim still has teleport which no attack can stop.
Fei vs. Sim is listed as a 3:7 match-up in Sim’s favor. So sim is actually considered a counter-pick against Fei. The real question is, how good are the Dhalsim players you are playing?