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I have a 2017 iMac (5K Retina) with the 3.5Ghz Intel Core i5 processor, 8 Gb of Ram & Radeon Pro 575 4Gb graphics. My workflow is to download my Fuji X-Pro2 raw files in Lightroom CC Classic, convert to Dng & then after minor edits in LR, use the Edit In function to transfer the files into Affinity (V. 1.6.7) as a plug-in to LR in order to use the Tone Mapping Persona to complete my work on the file. They start out processing with no problems & relatively fast to completion. But after working on a series of files, things begin to slow down considerably & often results in freezing my iMac so that I have to shut it down & restart to recover the tone mapped file & send it back to LR. Is this normal behavior due to my stock amount of only 8Gb of Ram, & would this situation improve if I increased it to at least 16-24Gb of Ram? Or is there some other reason that this is happening only when I work on a series of images in succession without closing Affinity & restarting this application? Does using Affinity as a plug-in to LR make any difference in how the Tone Mapping Persona will function?