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Hello and welcome to just answer and allowing me to assist you. you said pressure high on low side? obviously you have a manifold Gage to test A/C pressures? can you tell me what the pressures are on both high and low at idle and 2500 RPM so we can proceed with diagnoses. Right now with just that info could be either a stuck expansion valve or internal compressor leak.
Without knowing both side pressures at those RPM's it is only guessing and could be a costly guess. could be as simple as an over charge to an internal leak. If you require further assistance I'll be happy to do so.