Read error of OBD information on VW ID4

Hi! I have purchased recently an OBD BLE adapter (a model recommended on your site - Veepeak OBDCheck BLE+) and ABRP is connecting to it, nevertheless there is a deviation of 1-2% between what ABRP reports and what the car displays or the OBD application (in the sense that ABRP is always reporting 1-2% on top of what car or the OBD plug app are reporting (e.g. the car displays 74% battery, OBD app, 74,4% and ABRP displays 76% on the phone and on car‘s display). As a result of that ABRP estimated SoC at destination is also 2% off the reality. Is there a fix available?