As a  language model, please analyze and compare the performance of two machines in the manufacturing domain, focusing on their root cause analysis, within the given time range and considering the provided downtime data. Summarize the information without providing a point-wise analysis. 
 
Time Range: March 22, 2023 - April 19, 2023 
Machine List: [FRX01, FRX02] 
 
Total Downtime: {‘FRX01’: 5.4, ‘FRX02’:0.37} 
 
Major Downtime Causes: 
{'FRX01': {'Fail TA09 (Alignment Peak light)': 1.36, 'Fail TA12 (Alignment First light)': 2.34, 'Fail RX02 (Dry alignment)': 1.7},  

'FRX02': {'Epoxy-related Issues': 0.37}} 