Filler paint? What's available?

[wadder]

I'm redecorating my basement flat and the walls have a slight textured finish on them. I want to have a smooth finish - I've started sanding them but it is going to take forever to do.
Can anyone advise if there is a paint that you can apply that will leave a smoother non-textured finish?

 

[Third_Eye]

All filler paints are crap in me opinion. You best getting in an plasterer me thinks, cos by the time you spend money on many products and no be happy with results then you only wish you got an plasterer in.