I'll start by saying you may want to sit down and read around in these forums. Both this one and the Iconia A500 General to get a feel of some of the issues with the A500 or Honeycomb.
I don't know why your tablet is or was consistently "laggy" with 3.2 on it. But it appears you've managed to get it to work better for you by doing those wipes. The tablet does display some lag usually when it's woken up initially but after you've used it for a few seconds it will generally zip along. This is true of all HC based tablets.
I get virtually no lag on my A500 and I have quite a few apps installed, but I too get a little choppiness when I've woken it from sleep.
Re: browser lag when typing. It happens, again on all HC based tablets. You may want to check into alternative browsers. Dolphin for Pad is pretty good (that's what I use), but there's also Firefox, Opera and others.
Games which are not optimized for tablets and Honeycomb are not guaranteed to work properly. Older games which require the use of sensors are especially prone to issues. Some work. Some don't. Your only guarantee is if you get games that specifically state that they are made to work on Honeycomb. That's just how it works and it is what it is. There are a number of technical reasons why it's justified but I won't get into it.
Many people when they purchase these tablets with Honeycomb figure that all Android apps will work perfectly since it's also a version of Android but this just isn't the case. Tablets consist of bigger screens than phones and because of that sensors are calibrated at different dimensions and angles. Apps and Games need to be optimized for these changes and until they are, some will have trouble. Games are especially affected because they depend more on dimensions and sensor calibration. Sometimes developers will release an entirely different version of an app or a game made specifically for Honeycomb.
Your best bet right now is either to bear with the issues or get rid of the tablet. Ice Cream Sandwich will come along and SHOULD unify the Android Market in the long run. Your experience won't change by switching from one Android Tablet to another since Honeycomb is at the forefront of the trouble (being an offshoot of Android, made for tablets). ICS also won't solve these issues instantly or quickly as various developers will need time to bring their apps/games up to speed, so you'll just have to be willing to just stick with/through it until it does. If you are unable to do this or you feel the issues are just too much to handle, return the tablet or sell it if possible and get an iPad 2 which has a more streamlined market currently.
