Your accent is proof you speak more than one language. Wear it.

An accent is a record, not a flaw. It means your mouth learned one system first and is now running a second one, which is more than most of the room has managed. The self-consciousness usually comes from treating visible effort as if it were a visible mistake.

Keep speaking at the speed you actually think, rather than slowing down to hide it. If somebody comments, you can just say which language came first. Let the accent be information about you instead of something you apologise for.