Hi David, welcome to the forum! You've chosen a great sport to play
This is going to sound a little patronising, especially on the internet, but please know that it isn't supposed to be.
The questions is, do you want to improve and learn the skill of table tennis (be that attacking or defending)?
Or do you just want to have fun with equipment and mates, and "self teach" yourself?
The order of business for me would be:
1. Find a coach, pay for a few lessons and let them guide you on equipment.
You are absolutely right that your pre-made bat won't help you, but neither will Rakza 7 which will be far far far too quick.
If the coach is any good, they should be able to suggest something suitable.
If you don't have access to a coach, try and record some basic forehand shots and backhand shots, and post them on here for people to see your actual level.
2. This falls on deaf ears to most adults who take up the sport, but if you genuinely want to improve and be as good as you can be, you'll be using much slower rubbers for a good year or two before you even come close to the current "tensor" type rubbers.
Cheap Chinese rubbers allow you to play full strokes without having to worry about bombing the ball off the table - They also help with spin and touch. All 3 of those things are far more important than speed.
3. Stick with a blade you find comfortable. An ALL+ blade would be absolutely fine (choose one you like the look of!) Anything that is OFF will be too quick for a beginner.
That's pretty much it on the "do you want to improve" side....
If you just want to have a laugh and enjoy yourself without worrying too much, you can go crazy! Get Rakza, heck, buy Tenergy and feel the might of Butterfly!
If it were me, I'd put as much money into coaching as I could, and I wouldn't listen to people on the internet