VG272U How to disable overdrive when using freesync?

Hello

Just purchased Acer VG272U 170Hz IPS 1440p monitor. Image quality is stunning, no problems at all with screen.
But when I enable freesync which is crucial for me the overdrive is locked in something that appears to be normal mode ( but even more aggressive than normal) , and there is no way to change it.
On 170hz it looks quite good, on 144hz there is some overshot visible but not so bad. Around 100hz there is huge amount of overshot, it looks very bad actually, ant destroy the picture in motion. Since in most games I get around 100fps in 1440p the overshot is really visible and annoying. Its a deal beaker for me.
Please tell me any way to disable overdrive?? Maybe in service menu?

I can see when freesync is off the screen is very fast with overdrive set to off and all overshot problems are gone even on 80-90hz