I've recently been trying to make cod waw look better with reshade.me. By itself it works fine, but I had to replace the tm4 d3d9.dll file, meaning that I would not able to play certain custom maps if I kept it. Does anyone know anyway to get these both working together? If not, what about alternative reshading options that don't conflict with tm4?

Throw reshade in the trash and keep T4M

Just remove T4M and install maps that people actually took the time to fix the limit issue. Those maps will looks and play better to begin with and then reshade omg! T4M is for rushed map that usually has tons of bugs anyway.