Thunar/Tumbler 4.18 - Increased RAM Usage After Upgrade

I'm on Debian Sid and I've been noticing that the 4.18 version of Tumbler can easily shoot up to 300 MB while simply browsing my directories for thumbnail creation. This was hardly an issue with 4.16. On top of this issue with thumbnails being created exclusively for 4.18 (4.16 and earlier thumbnails are still there), this might be worth looking into for better memory handling.

I can provide more information, if needed. Thanks.