Land Rover AC not cooling properly, anyone faced this?

I’m honestly a bit confused right now and thought I’d ask here because maybe someone has dealt with the same issue. My Land Rover’s AC has started acting weird lately, it cools fine when I first start the car but after a short drive it just loses power and the air becomes warm, especially during midday heat. I’ve already checked the basic stuff like filters and coolant level but everything seems normal, so I feel like it might be something deeper in the system. I don’t want to take it to a random garage because these cars are not cheap to fix and I’ve heard bad repair stories from friends. While searching I came across Skilled Land Rover AC Mechanics Sharjah and it looks like they deal with proper AC diagnostics for luxury cars, but I still want to know if anyone here has actually used them or had a similar problem fixed. Would appreciate any honest experience or advice before I decide what to do next.