You only have two options. Use an external mic plugged into your R52 and use it close to the subject, reduce or remove the reverb in post production using tools from for example, Synaptic or Izotope, or a combination of both.
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EOS C100 mk2 with a Canon EF-S 18-135mm IS STM, and a Sigma EF mount 10mm-20mm EX DC HSM wide angle - Zoom H2Essential - Dell 8700 i7-4790 3.6Ghz, 24GB Ram, Win 10, Nvidia GTX 1060 6GB - DaVinci Resolve Studio 20.3 - Blackmagic Speed Editor - Presonus Faderport 1.
