If'n I were you, I would focus on getting what you have fixed to your liking FIRST. Maybe some day, after you learn your car and get everything working well together, you can start adding all that high-dollar stuff that seems cool but doesn't do squat to help your current situation. FIND AND FIX THE ISSUES and then you know your baseline. Max out what you have, and then and only then, start worrying about mods. If you don't know what the parts do for you, you'll just be throwing money under the hood for no apparent reason. You might get lucky, but more times than not, you won't. And even possibly make things worse. I suggest getting a Chassis Service Manual (CSM) for your car. That's one of the first things I would do.
And just a thought. Folk lore and remembering sh*t from yesteryear does funny things to your mind. Your car was ALWAYS faster years ago. Or seemed like it, anyway. Just because it's a turbo doesn't automatically mean it's going to shred tires. Just placing that out there. "trouble accelerating" can cover a massive amount of issues. But do what the other guys already suggested first. Cheap and non-time-consuming things are great places to start. My first thought was whacked ignition timing, dirty fuel filter (or plugged fuel pickup) or weak fuel pump. But I don't know crap about typical turbo cars' problems. The turbo guys probably will have the best answers for you.
