cleaning frequency question

Hello all. I'm newer to rowing, usually I've been into biking or swimming but man oh man, this rowing is amazing. I did my research and bought a concept 2 model D used, very low miles and the insides are all pristine so seems legit. Couple months in and it's in great shape so I dont think I got some gussied up super used rower.

I'm currently rowing 6-8k every day and my gf does about 3k 4-5 days per week. I'm finding I need to clean the rollers and tracks every two days. I've read a number of posts about why it happens but that seems too frequent. I'll admit my body is prepared for winter in the mid 200's (lbs) so I thought that might be the issue (my gf weighs about as much as a cat). Is there anything else that might be causing this? Thanks for any help!