Is it really perfectionism holding you back, or is it indecision?
There's nothing wrong with perfectionism, provided you have a clear idea of the standard you're aiming for and the means to achieve it.
This is very different to having no idea what's required and being paralysed by the the fear of making the wrong decision or screwing things up.
The way forward isn't lowering your standards, it's making a decision, taking a chance and doing things to the best of your ability.