Let's see if I can define the accuracy problem problem a little better. It's a problem I only experience on my 45g Topre board. I don't have it on any other boards, no matter what switch type. The single biggest problem is that I am ALWAYS hitting nearby keys. I activate caps lock often, though I know THAT one can be fixed by a DIP switch. But even if I fix that, I would still often have INitial caps issues, or typos such as "thenm". "asnd" "problekm", etc.
If you're hitting nearby keys that you shouldn't be hitting, then this is 100% user error. Put it this way, the keys don't type themselves. Hitting wrong keys is obviously by accident, but it still doesn't change the fact that you're the one doing it. You might think you type with great accuracy and can't explain why you get such horrendous accuracy with this particular 45g topre board, but here's what I believe is happening.
When you're pressing down on other mechanical keyboards, actuation is in the middle, also where the tactile bump is located. On a 45g topre board, the actuation is also in the middle, however the tactile bump starts at the very top. Once you've pressed through this tactile bump (which doesn't take much force at all), the inherent nature of the switch will force you all the way through the actuation point. So just a slight press at the very top will force you to bottom-out (obviously going through the actuation point), whereas in a switch like tactile cherry MX, you get a buffer zone for the first half of the keypress before you actuate the keys. If you accidentally hit the keys, but it's less than halfway down, the keys won't register.
What this means is that your finger accuracy is still the same on MX switches, but it's masked by the fact that you're not actually hitting it past halfway to actuate the keys. This is also why some people can "float type" and not bottom out on a cherry MX board, but it's near impossible to do so on a 45g topre without bottoming out.