cfp use too much memory

frequently cfp is using 1,3 Gb or more and the PC begin to work very slow. I have to close the program and restart. Why?

That suggests a memory leak, can you please post a screenshot of this high memory usage? and which ‘memory’ counter is used to determine this ‘value’?
What are your hardware specs?

Is Defense+ Settings, ‘Enable adaptive mode under low system resources’ enabled or disabled?