You can hire a professional to retexture walls for you.
How To Get Smooth Walls Without Plastering. Hard to say what is the best method to repair your walls without actually seeing i do a lot of plaster repair and found the quickest and easiest method is i use it a lot and really like how it speeds up the process for plaster repair. Is this the best way to get smooth walls after removing paneling?
Plastering applications using a Darby, rod or straightedge ... from i.ytimg.com
When your walls have been plastered you should be able to paint them without rubbing. See her take on 5 things your contractor wishes you knew. This first pass isn't going to get everything perfectly smooth, but you'll want to create a relative flatness between the wall base.
Many designers believe that plaster walls display a subtle old plaster walls are more temperamental than drywall so you have to put a little more elbow grease into the preparation work before you paint.
For this you use a caulking blade which is a wide piece of steel and should leave a flat smooth surface. When your walls have been plastered you should be able to paint them without rubbing. Smoothing walls with roller, paste, plaster, putty or cement. Getting the tiles off a wall without damage takes patience and the right tools.