Im not familiar with your specific bike, Generally eu compliance takes the form of a hobbled version of the firmware installed on the bikes controller system limiting user configuration options.
A clear indication this is the case is if you have downloaded an 'international' manual that details options you cannot access following the manual instructions.
There are work arounds - the simplest is selecting a low pedaling gear, and high pas level and ghost pedaling at a comfortable rate when you want a full open throttle.. - while initially it may not appeal, its overriding benefit is NO illegal mods to the bike likely to make matters worse if ever stopped, and the fact you need to maintain a pedaling motion will not alert distant police onlookers that your coasting on a throttle without pedaling. - the easiest to spot at a distance give away that a bike is NOT compliant with regs..
You could fit a diy circuit built from ebay modules to emulate the pwm pulse signal expected from a pas sensor you could swith on/off with a button.
Some have even moved the pas sensor from the crank to the front wheel..
A controller/display combo replacement with something fully configurable like the KT controllers and displays is the extreme option but would allow you to setup a compliant system and password protect the setup then apply config changes on the fly to allow higher speed or throttle etc then if stopped by plod, a power off and power on will reset back to the compliant settings
Before throwing money at a 'solution' I suggest you try the ghost pedaling approach for a few weeks, it took me a couple of weeks to learn to work with my basic ebike system.. but now its 2nd nature,
A crack of a brake cut off sensor enabled rear brake lever, insufficient to engage brakes, but enough to cut the motor is a great 'virtual clutch' to accompany the ghost pedaling 'virtual full throttle'..