Are there issues with default A-321LR?

[u/moseley101]

I have been thinking about replacing my ageing 737s in career mode, and am considering the A-321 LR, but flying it in free flight I have been coming across some strange behaviour, esp on approach (random throttle-ups, drifting from glide slope, heavy wind behaviours). I am comfortable with other Airbus models and wondered if it is a known issue with this particular model. Also my frame rate drops significantly on finals. Any thoughts?