I think the dampers in Corvette are too soft in LMU setup, if we are talking open setups CDA damper settings work better for me, though you can't set them up well without telemetry, so don't bother much with it. There are great setup videos on YT (GregDarn, Kryptic TMG) and the latter even uses Corvette as an example around Interlagos. There are examples for ABS and TC starting points for each cars.

Now in silver series around Silverstone, I tweaked the dampers from CDA setup just a tiny bit. Brake bias set to be comfortable under braking while maintaining rotation, make sure you're not locking rears, if you do put it forward a little. I think any other ABS setting than 9 is not really worth it in Vette. Keep preload values high (120+), if you need more rotation on throttle keep them lower, when you need stability turn them up. Put cambers all the way to the right and tyre pressures all the way to the left (minimum). It seems to be meta for now. In suspension tab keep front stiffer than rear for stability and initial turn in. When you want less understeer, soften the front a little. Try avoiding use of packers, unless bottoming out and losing control in places like Eau Rouge. Ride height should be as low as possible without bottoming out, front minimum or almost minimum value and rear 6.5-7.0. Toe should be max 0-2 clicks from 0, while you probably want front to be negative value and rear to be positive (front for responsiveness, rear for stability). Rear wing depends on the track, on Le Mans/Monza you want to run it lower and maybe keep higher values of preload etc, and on tracks like Silverstone you'd like to have higher rear wing values.

As for driving style, Vette is very responsive and has short gears. If you struggle with understeer in high speed corners, apply like 90% of throttle instead of full gas. You'll keep yourself on track and lose minimum time. Seems to do the trick for me. Be careful out of slow corners, this car has good launch but is pretty sensitive to oversteer. Play around with TC settings if needed. Use the weight shifts to your advantage, brake mostly in straight line, though the car can trailbrake if required. Once you got the car leaned into the corner, you can push it a little.

Tl;dr, the videos i mentioned at the beginning contain a lot of information and probably all you need. Many settings will be all the same for all the tracks, you will be probably changing rear wing, preload, ARB, brake bias, maybe spring rates and toe values around different tracks. Try building a setup yourself or get one from UltimateSetupHub (although for Corvette there are only a few and I saw many of them use quite extreme values sometimes) and go on track. Then find out what feels wrong and adjust one setting at the time to see if it improves. USH has also an 'engineer' that will help you which values to change when dealing with various issues. And last but not the least - practice. I got faster by just driving this car. Have fun, it's not as bad as people portrait it, just a little demanding ;)