Modern Vespa

My turn signals come on fine with engine running at low speed but if it's just off the battery or high speed they take a long time to come on what could it be?

You might not be getting enough current, or have too much resistance.

I had a 79 Vespa that did the same thing, I think my 84 Vespa did as well. Neither one had batteries, but when the bike was at higher RPMs it was making current so no issues with lights. At idle it was making less current so everything was slow and dim.

How old is your battery, has the bike been starting kind of rough lately, and have you taken a multimeter to it to measure voltage at idle?

And handful of months I am getting proper voltage yeah the bike has been starting angelic after a carb clean so I don't think battery is the cause I should also add sometimes they get all dull and flickery then come on full intensity

Define "long time."
You're riding a 50cc scooter in Florida and you're concerned about letting drivers who are close by know that you intend to pull into the lane in front of them? Try it a day with signaling beforehand then try it without. See which method allows you to get over without being sideswiped by someone who channels his internal Don Garretts at the sight of flashing lights one lane over.

It's like 30 ish seconds it's long enough to be dangerous I have been on this thing for a while now all over town with zero issues normally people let me hop in when I pop a left signal so I can turn or give so distance when the know I'm turning into the school I wouldn't car if this wasn't enough to concern me for my own safety

30 seconds is a while. At 120 mph, that's a mile. At 30 mph, you're a quarter mile down the road.
It's likely either the voltage regulator or a miscalculation of the passing of time

Have you tried replacing the battery/changing the oil?

What model year is your lx50? You can add the model year in your profile by typing it in just before the model. Cheers.

2006

Okay so to document for any others troubleshooting my issue was indeed the voltage regulator getting low volts at the regulator pin 5 and turn signal operation has returned to normal

Thank you for the update and resolution.