Yes. A polarizing filter on the lens can help, and a more complete setup is cross-polarization: polarizing material on the lights plus a polarizer on the lens, adjusted to suppress glare.

The main fix, though, is to make the light less directional and more diffuse. Try:

• illuminating through a white sheet/scrim, with the camera shooting through a small opening
• bouncing the softboxes off walls or the ceiling instead of aiming them at the painting
• using larger light sources, reflectors, or more ambient room light

These approaches increase the apparent size of the light source and reduce the harsh specular highlights from raised paint texture.

Another practical option is to shoot multiple frames with the lights in different positions, then stack the images and use a “Darken” blend mode (or equivalent). Since the reflection spots are brighter than the underlying paint, combining the shots this way can hide many of the hotspots. If needed, align the images first before blending.